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CP2102 OSX drivers? [solved: make sure your USB cable is OK] #2

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MacDada opened this issue Jul 8, 2015 · 40 comments

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commented Jul 8, 2015

Where do I find working drivers for OSX 10.10 (Yosemite)?

  1. I have OSX 10.10.3 on MBP11,2
  2. I downloaded OSX drivers from the vendor website (direct zip download)
  3. Unpacked the ZIP, mounted DMG file, installed using the PKG installer.
  4. Restarted computer
  5. I connected NodeMcu devkit v1.0 through USB 3.0 port

There is a file/folder /Library/Extensions/SiLabsUSBDriver.kext, but no serial port available for the device.

$ ls -lah /dev/cu*
crw-rw-rw-  1 root  wheel   18,   1 Jul  8 13:32 /dev/cu.Bluetooth-Incoming-Port
crw-rw-rw-  1 root  wheel   18,   3 Jul  8 13:32 /dev/cu.Bluetooth-Modem
crw-rw-rw-  1 root  wheel   18,   5 Jul  8 13:32 /dev/cu.DadaFon4-WirelessiAP

$ ls -lah /dev/tty.*
crw-rw-rw-  1 root  wheel   18,   0 Jul  8 13:32 /dev/tty.Bluetooth-Incoming-Port
crw-rw-rw-  1 root  wheel   18,   2 Jul  8 13:32 /dev/tty.Bluetooth-Modem
crw-rw-rw-  1 root  wheel   18,   4 Jul  8 13:32 /dev/tty.DadaFon4-WirelessiAP

No success with ESPlorer and Arduino IDE.


EDIT 1

Apparently it works for some people (?), but not for me: http://blog.squix.ch/2015/05/esp8266-flashing-nodemcu-v10-on-mac-os.html


EDIT 2:

It looks like the kext isn't loaded?

$ kextstat
Index Refs Address            Size       Wired      Name (Version) <Linked Against>
    1   92 0xffffff7f80a3e000 0x8c50     0x8c50     com.apple.kpi.bsd (14.3.0)
    2    7 0xffffff7f80f9c000 0x28c0     0x28c0     com.apple.kpi.dsep (14.3.0)
    3  118 0xffffff7f80a03000 0x20500    0x20500    com.apple.kpi.iokit (14.3.0)
    4  125 0xffffff7f80a24000 0xbf50     0xbf50     com.apple.kpi.libkern (14.3.0)
    5  108 0xffffff7f80a00000 0x2d50     0x2d50     com.apple.kpi.mach (14.3.0)
    6   53 0xffffff7f80a30000 0x8590     0x8590     com.apple.kpi.private (14.3.0)
    7   71 0xffffff7f80a39000 0x4900     0x4900     com.apple.kpi.unsupported (14.3.0)
    8    4 0xffffff7f80da3000 0x9c000    0x9c000    com.apple.kec.corecrypto (1.0) <7 6 5 4 3 1>
    9    0 0xffffff7f80ea4000 0xc000     0xc000     com.apple.kec.pthread (1) <7 6 5 4 1>
   10    1 0xffffff7f80fd5000 0x9000     0x9000     com.apple.kec.Libm (1) <4>
   11   23 0xffffff7f813b7000 0x9000     0x9000     com.apple.iokit.IOACPIFamily (1.4) <7 6 4 3>
   12   31 0xffffff7f80b24000 0x2f000    0x2f000    com.apple.iokit.IOPCIFamily (2.9) <7 6 5 4 3>
   13    2 0xffffff7f82956000 0x5f000    0x5f000    com.apple.driver.AppleACPIPlatform (3.1) <12 11 7 6 5 4 3 1>
   14    1 0xffffff7f810a5000 0xb000     0xb000     com.apple.driver.AppleFDEKeyStore (28.30) <8 7 6 5 4 3 1>
   15    2 0xffffff7f813b0000 0x7000     0x7000     com.apple.iokit.IOReportFamily (31) <5 4 3>
   16   10 0xffffff7f80a47000 0x26000    0x26000    com.apple.iokit.IOStorageFamily (2.0) <7 6 5 4 3 1>
   17    0 0xffffff7f814a7000 0x19000    0x19000    com.apple.driver.DiskImages (396) <16 7 6 5 4 3 1>
   18    1 0xffffff7f822ce000 0xf000     0xf000     com.apple.driver.AppleCredentialManager (1.0) <7 5 4 3 1>
   19    2 0xffffff7f80fa2000 0xd000     0xd000     com.apple.driver.AppleMobileFileIntegrity (1.0.5) <7 6 5 4 3 2 1>
   20    0 0xffffff7f822dd000 0x23000    0x23000    com.apple.driver.AppleKeyStore (2) <19 18 8 7 6 5 4 3 1>
   21    0 0xffffff7f80f9f000 0x2000     0x2000     com.apple.security.TMSafetyNet (8) <7 6 5 4 2 1>
   22    2 0xffffff7f80faf000 0x5000     0x5000     com.apple.kext.AppleMatch (1.0.0d1) <4 1>
   23    1 0xffffff7f80fb4000 0x17000    0x17000    com.apple.security.sandbox (300.0) <22 19 7 6 5 4 3 2 1>
   24    0 0xffffff7f80fcb000 0x9000     0x9000     com.apple.security.quarantine (3) <23 22 7 6 5 4 2 1>
   25    0 0xffffff7f829cc000 0x8000     0x8000     com.apple.nke.applicationfirewall (161) <7 6 5 4 3 1>
   26    0 0xffffff7f82929000 0x3000     0x3000     com.apple.driver.AppleAPIC (1.7) <4 3>
   27    3 0xffffff7f81358000 0x4000     0x4000     com.apple.iokit.IOSMBusFamily (1.1) <5 4 3>
   28    0 0xffffff7f829bb000 0x7000     0x7000     com.apple.driver.AppleACPIEC (3.1) <27 13 11 5 4 3>
   29    0 0xffffff7f821e9000 0x4000     0x4000     com.apple.driver.AppleSMBIOS (2.1) <7 4 3>
   30    0 0xffffff7f82546000 0x3000     0x3000     com.apple.driver.AppleHPET (1.8) <11 7 5 4 3>
   31    6 0xffffff7f810b0000 0x76000    0x76000    com.apple.iokit.IOHIDFamily (2.0.0) <14 7 6 5 4 3 2 1>
   32    0 0xffffff7f829c5000 0x4000     0x4000     com.apple.driver.AppleACPIButtons (3.1) <31 13 11 7 6 5 4 3 1>
   33    0 0xffffff7f8220a000 0x8000     0x8000     com.apple.driver.AppleRTC (2.0) <11 5 4 3 1>
   34    1 0xffffff7f825bb000 0x5000     0x5000     com.apple.driver.AppleEFIRuntime (2.0) <7 6 5 4 3>
   35    0 0xffffff7f821d1000 0x8000     0x8000     com.apple.driver.AppleSmartBatteryManager (161.0.0) <27 11 5 4 3 1>
   36    1 0xffffff7f825c0000 0xb000     0xb000     com.apple.driver.AppleEFINVRAM (2.0) <34 7 6 5 4 3 1>
   37   16 0xffffff7f8101d000 0x65000    0x65000    com.apple.iokit.IOUSBFamily (720.4.4) <12 7 5 4 3 1>
   38    0 0xffffff7f81158000 0x22000    0x22000    com.apple.driver.AppleUSBXHCI (710.4.11) <37 12 7 5 4 3 1>
   39    5 0xffffff7f80fde000 0x2c000    0x2c000    com.apple.iokit.IONetworkingFamily (3.2) <7 6 5 4 3 1>
   40    1 0xffffff7f816de000 0x7000     0x7000     com.apple.driver.mDNSOffloadUserClient (1.0.1b8) <39 4 3 1>
   41    1 0xffffff7f816e5000 0xab000    0xab000    com.apple.iokit.IO80211Family (730.60) <39 8 7 6 5 4 3 1>
   42    0 0xffffff7f81798000 0x5e6000   0x5e6000   com.apple.driver.AirPort.Brcm4360 (930.37.3) <41 40 39 12 7 6 5 4 3 1>
   43    7 0xffffff7f8123f000 0xde000    0xde000    com.apple.iokit.IOThunderboltFamily (4.2.2) <5 4 3 1>
   44    0 0xffffff7f820f1000 0x1b000    0x1b000    com.apple.driver.AppleThunderboltNHI (3.1.7) <43 12 11 5 4 3 1>
   45    0 0xffffff7f820df000 0x5000     0x5000     com.apple.driver.AppleThunderboltPCIDownAdapter (2.0.2) <43 12 5 4 3 1>
   46    3 0xffffff7f82133000 0xf000     0xf000     com.apple.driver.AppleThunderboltDPAdapterFamily (4.0.6) <43 11 5 4 3 1>
   47    0 0xffffff7f8215d000 0x6000     0x6000     com.apple.driver.AppleThunderboltDPInAdapter (4.0.6) <46 43 5 4 3 1>
   48    3 0xffffff7f81686000 0x16000    0x16000    com.apple.iokit.IOAHCIFamily (2.7.5) <5 4 3 1>
   49    0 0xffffff7f8292e000 0x1b000    0x1b000    com.apple.driver.AppleAHCIPort (3.1.2) <48 12 5 4 3 1>
   50    0 0xffffff7f816ac000 0x9000     0x9000     com.apple.iokit.IOAHCIPassThrough (1.0.3) <48 5 4 3 1>
   51    0 0xffffff7f816b9000 0x18000    0x18000    com.apple.iokit.IOAHCIBlockStorage (2.7.1) <48 16 6 5 4 3 1>
   52    0 0xffffff7f81fb9000 0x3000     0x3000     com.apple.driver.XsanFilter (404) <16 5 4 3 1>
   53    0 0xffffff7f811bd000 0x1c000    0x1c000    com.apple.driver.AppleUSBHub (705.4.2) <37 5 4 3 1>
   54    0 0xffffff7f81ef5000 0xa000     0xa000     com.apple.BootCache (36) <7 6 5 4 3 1>
   55    0 0xffffff7f8284c000 0x2000     0x2000     com.apple.driver.AppleFileSystemDriver (3.0.1) <16 4 3>
   56    0 0xffffff7f82850000 0x5000     0x5000     com.apple.AppleFSCompression.AppleFSCompressionTypeZlib (1.0.0d1) <6 4 3 2 1>
   57    0 0xffffff7f82857000 0x3000     0x3000     com.apple.AppleFSCompression.AppleFSCompressionTypeDataless (1.0.0d1) <7 6 4 3 2 1>
   58    1 0xffffff7f81df7000 0xde000    0xde000    com.apple.driver.CoreStorage (471.20.7) <16 7 6 5 4 3 1>
   59    0 0xffffff7f81edb000 0x16000    0x16000    com.apple.driver.CoreStorageFsck (471.20.7) <58 16 7 6 5 4 3 1>
   60    1 0xffffff7f8114e000 0xa000     0xa000     com.apple.driver.AppleUSBComposite (705.4.9) <37 4 3 1>
   61    0 0xffffff7f811b6000 0x7000     0x7000     com.apple.driver.AppleUSBMergeNub (705.4.0) <60 37 4 3 1>
   62    4 0xffffff7f80ae2000 0x2b000    0x2b000    com.apple.iokit.IOSCSIArchitectureModelFamily (3.7.5) <5 4 3 1>
   63    1 0xffffff7f8108e000 0x11000    0x11000    com.apple.iokit.IOUSBMassStorageClass (3.7.2) <62 37 16 5 4 3 1>
   64    1 0xffffff7f80eb0000 0x18000    0x18000    com.apple.iokit.IOSCSIBlockCommandsDevice (3.7.5) <62 16 5 4 3 1>
   65    0 0xffffff7f821b6000 0x8000     0x8000     com.apple.driver.AppleUSBCardReader (3.5.5) <64 63 62 37 16 5 4 3 1>
   66    0 0xffffff7f8135c000 0x7000     0x7000     com.apple.iokit.SCSITaskUserClient (3.7.5) <62 16 5 4 3 1>
   67    3 0xffffff7f81144000 0xa000     0xa000     com.apple.iokit.IOUSBHIDDriver (705.4.0) <37 31 5 4 3 1>
   68    0 0xffffff7f81ff2000 0x4000     0x4000     com.apple.driver.AppleUSBTCKeyboard (240.2) <67 37 31 7 6 5 4 3 1>
   69    0 0xffffff7f81ff8000 0x2000     0x2000     com.apple.driver.AppleUSBTCKeyEventDriver (240.2) <31 5 4 3>
   70    0 0xffffff7f82001000 0x13000    0x13000    com.apple.driver.AppleUSBMultitouch (245.2) <67 37 31 6 5 4 3 1>
   71    0 0xffffff7f81ffc000 0x3000     0x3000     com.apple.driver.AppleUSBTCButtons (240.2) <67 37 31 7 6 5 4 3 1>
   72   16 0xffffff7f81450000 0x3b000    0x3b000    com.apple.iokit.IOGraphicsFamily (2.4.1) <12 7 5 4 3 1>
   73    1 0xffffff7f8227b000 0xe000     0xe000     com.apple.driver.AppleSMBusController (1.0.13d1) <27 12 11 5 4 3>
   74    0 0xffffff7f8228c000 0xe000     0xe000     com.apple.driver.AppleMCCSControl (1.2.11) <73 72 12 11 7 5 4 3 1>
   75    4 0xffffff7f81497000 0x10000    0x10000    com.apple.iokit.IONDRVSupport (2.4.1) <72 12 7 5 4 3>
   76    6 0xffffff7f813ca000 0x1a000    0x1a000    com.apple.driver.AppleSMC (3.1.9) <11 7 5 4 3 1>
   77    2 0xffffff7f82820000 0x5000     0x5000     com.apple.driver.AppleBacklightExpert (1.1.0) <75 72 12 5 4 3>
   78    0 0xffffff7f82921000 0x5000     0x5000     com.apple.driver.AppleBacklight (170.7.4) <77 76 75 72 12 5 4 3>
   79    2 0xffffff7f8281d000 0x3000     0x3000     com.apple.driver.AppleGraphicsControl (3.10.22) <72 12 11 7 5 4 3 1>
   80    0 0xffffff7f82825000 0x14000    0x14000    com.apple.driver.AppleMuxControl (3.10.22) <79 77 72 12 11 7 6 5 4 3 1>
   81    1 0xffffff7f82142000 0xe000     0xe000     com.apple.driver.AppleThunderboltDPOutAdapter (4.0.6) <46 43 5 4 3 1>
   82    0 0xffffff7f82150000 0xd000     0xd000     com.apple.driver.AppleThunderboltEDMSink (4.0.2) <81 46 43 5 4 3 1>
   83    6 0xffffff7f813c0000 0xa000     0xa000     com.apple.driver.IOPlatformPluginFamily (5.9.1d7) <11 7 6 5 4 3>
   84    1 0xffffff7f813e6000 0x17000    0x17000    com.apple.driver.X86PlatformPlugin (1.0.0) <83 76 37 11 7 6 5 4 3 1>
   85    1 0xffffff7f81406000 0x12000    0x12000    com.apple.driver.IOPlatformPluginLegacy (1.0.0) <83 11 7 6 5 4 3>
   86    0 0xffffff7f8141a000 0x10000    0x10000    com.apple.driver.ACPI_SMC_PlatformPlugin (1.0.0) <85 83 76 12 11 7 6 5 4 3>
   87    1 0xffffff7f8134e000 0x5000     0x5000     com.apple.iokit.IOSlowAdaptiveClockingFamily (1.0.0) <7 6 5 4 3 1>
   88    0 0xffffff7f82300000 0x2000     0x2000     com.apple.driver.AppleIntelSlowAdaptiveClocking (4.0.0) <87 4 3>
   89    2 0xffffff7f8234f000 0x6f000    0x6f000    com.apple.iokit.IOAcceleratorFamily2 (156.14) <72 12 7 6 5 4 3 1>
   90    3 0xffffff7f82456000 0x6000     0x6000     com.apple.AppleGraphicsDeviceControl (3.10.22) <7 6 5 4 3 1>
   91    0 0xffffff7f8245c000 0x4b000    0x4b000    com.apple.driver.AppleIntelFramebufferAzul (10.0.6) <90 89 72 15 12 11 7 6 5 4 3 1>
   92    0 0xffffff7f82860000 0xa8000    0xa8000    com.apple.driver.AppleCameraInterface (5.33.0) <12 7 6 5 4 3 1>
   93    0 0xffffff7f821de000 0x5000     0x5000     com.apple.driver.AppleSMCLMU (2.0.7d0) <76 72 5 4 3>
   94    1 0xffffff7f810a2000 0x3000     0x3000     com.apple.iokit.IOUSBUserClient (705.4.0) <37 7 5 4 3 1>
   95    0 0xffffff7f821e6000 0x3000     0x3000     com.apple.driver.AppleSMBusPCI (1.0.12d1) <12 5 4 3>
   96    2 0xffffff7f81f01000 0x78000    0x78000    com.apple.vecLib.kext (1.2.0) <10 6 5 4 3>
   97    4 0xffffff7f81f79000 0x30000    0x30000    com.apple.iokit.IOAudioFamily (203.3) <96 5 4 3 1>
   98    2 0xffffff7f82579000 0xc000     0xc000     com.apple.iokit.IOHDAFamily (272.18) <5 4 3 1>
   99    1 0xffffff7f8258c000 0x1c000    0x1c000    com.apple.driver.AppleHDAController (272.18) <98 97 72 12 7 6 5 4 3 1>
  100    0 0xffffff7f822c6000 0x3000     0x3000     com.apple.driver.AppleLPC (1.7.3) <83 12 5 4 3>
  101    0 0xffffff7f82111000 0x17000    0x17000    com.apple.driver.AppleThunderboltIP (2.0.2) <43 39 12 5 4 3 1>
  102    0 0xffffff7f8285b000 0x3000     0x3000     com.apple.driver.AppleFIVRDriver (4.1.0) <4 3>
  103    0 0xffffff7f82508000 0xb000     0xb000     com.apple.driver.AppleHV (1) <7 6 5 4 3 1>
  104    0 0xffffff7f82503000 0x3000     0x3000     com.apple.driver.AppleHWAccess (1) <7 5 4 3>
  105    1 0xffffff7f81339000 0x13000    0x13000    com.apple.iokit.IOSurface (97.4) <7 5 4 3 1>
  106    0 0xffffff7f823cc000 0x60000    0x60000    com.apple.driver.AppleIntelHD5000Graphics (10.0.6) <105 89 72 12 7 6 5 4 3 1>
  107    0 0xffffff7f81df1000 0x5000     0x5000     com.apple.Dont_Steal_Mac_OS_X (7.0.0) <76 7 4 3 1>
  108    2 0xffffff7f8154a000 0xab000    0xab000    com.apple.iokit.IOBluetoothFamily (4.3.4f4) <15 7 5 4 3 1>
  109    0 0xffffff7f81011000 0x6000     0x6000     com.apple.iokit.IOUserEthernet (1.0.1) <39 6 5 4 3 1>
  110    1 0xffffff7f81605000 0x23000    0x23000    com.apple.iokit.IOBluetoothHostControllerUSBTransport (4.3.4f4) <108 37 12 11 7 5 4 3 1>
  111    0 0xffffff7f81628000 0x9000     0x9000     com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport (4.3.4f4) <110 108 37 12 11 7 5 4 3>
  112    0 0xffffff7f81533000 0x2000     0x2000     com.apple.iokit.IOBluetoothUSBDFU (4.3.4f4) <37 4 3>
  113    0 0xffffff7f81fc2000 0x5000     0x5000     com.apple.driver.AppleUpstreamUserClient (3.6.1) <72 12 11 7 5 4 3 1>
  114    1 0xffffff7f825a8000 0x13000    0x13000    com.apple.kext.OSvKernDSPLib (1.15) <5 4>
  115    1 0xffffff7f825cb000 0x131000   0x131000   com.apple.driver.DspFuncLib (272.18) <114 97 96 36 6 5 4 3 1>
  116    0 0xffffff7f82706000 0xab000    0xab000    com.apple.driver.AppleHDA (272.18) <115 99 98 97 75 72 6 5 4 3 1>
  117    0 0xffffff7f82841000 0x7000     0x7000     com.apple.driver.AppleGraphicsDevicePolicy (3.7.7) <90 79 72 12 11 7 6 5 4 3 1>
  118    0 0xffffff7f82269000 0x4000     0x4000     com.apple.driver.AppleOSXWatchdog (1) <12 7 6 5 4 3 1>
  119    0 0xffffff7f82588000 0x2000     0x2000     com.apple.driver.AppleHDAHardwareConfigDriver (272.18) <4 3>
  120    1 0xffffff7f813fd000 0x7000     0x7000     com.apple.driver.X86PlatformShim (1.0.0) <84 83 76 7 4 3>
  121    0 0xffffff7f82800000 0x14000    0x14000    com.apple.driver.AGPM (110.19.5) <90 83 75 72 12 5 4 3>
  122    0 0xffffff7f82262000 0x4000     0x4000     com.apple.driver.ApplePlatformEnabler (2.2.0d4) <7 5 4 3>
  123    1 0xffffff7f8120b000 0xe000     0xe000     com.apple.iokit.IOSerialFamily (11) <7 6 5 4 3 1>
  124    0 0xffffff7f81536000 0xa000     0xa000     com.apple.iokit.IOBluetoothSerialManager (4.3.4f4) <123 7 5 4 3 1>
  125    2 0xffffff7f80e3f000 0x5000     0x5000     com.apple.kext.triggers (1.0) <7 6 5 4 3 1>
  126    0 0xffffff7f80f91000 0x9000     0x9000     com.apple.filesystems.autofs (3.0) <125 7 6 5 4 3 1>
  127    0 0xffffff7f81fb1000 0x5000     0x5000     com.apple.driver.AudioAUUC (1.70) <97 72 12 11 7 5 4 3 1>
  128    3 0xffffff7f829d6000 0x58000    0x58000    org.virtualbox.kext.VBoxDrv (4.3.28) <7 5 4 3 1>
  129    0 0xffffff7f82a2e000 0x8000     0x8000     org.virtualbox.kext.VBoxUSB (4.3.28) <128 94 37 7 5 4 3 1>
  130    0 0xffffff7f82a36000 0x5000     0x5000     org.virtualbox.kext.VBoxNetFlt (4.3.28) <128 7 5 4 3 1>
  131    0 0xffffff7f82a3b000 0x6000     0x6000     org.virtualbox.kext.VBoxNetAdp (4.3.28) <128 5 4 1>
  132    0 0xffffff7f80e44000 0x59000    0x59000    com.apple.filesystems.smbfs (3.0.1) <125 8 7 6 5 4 3 1>

Edit 3:

$ kextutil -tn /Library/Extensions/SiLabsUSBDriver.kext
/Library/Extensions/SiLabsUSBDriver.kext appears to be loadable (including linkage for on-disk libraries).

Edit 4:

The device does work, as I can join its network and ping it.
screen shot 2015-07-08 at 15 38 39

@MacDada

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commented Jul 8, 2015

@squix78 Apparently you've got this working – any details?

Did it just work OOTB? What OSX version? What model of Mac?

Do you see the kext being loaded in kextstat? (not sure if this should show it…)

@marcoskirsch

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commented Jul 8, 2015

SiLabs' drivers worked out of the box for me (OS X Yosemite). They are signed so there's no need to turn off checks in the OS.

There's some issues I've had and I cannot say for sure if they are due to the drivers: I can use NodeMCU devkit 1.0 with screen and ESPlorer in general but I was not able to make it work with mini-com nor have I been able to flash it with esptool. These things worked for me onESP01 and different USB-serial adapter.

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commented Jul 8, 2015

@marcoskirsch Could you please paste what kextstat shows you? Is the driver listed there? What's your exact OSX/Mac?

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commented Jul 8, 2015

OS X Yosemite 10.10.4 (14E46)
MacBook Pro (Retina, 13-inch, Early 2015) 3.1 GHz Intel Core i7

kextstat (scroll to the bottom):

Index Refs Address            Size       Wired      Name (Version) <Linked Against>
    1   89 0xffffff7f80a0f000 0x8c50     0x8c50     com.apple.kpi.bsd (14.4.0)
    2    7 0xffffff7f80e66000 0x28c0     0x28c0     com.apple.kpi.dsep (14.4.0)
    3  112 0xffffff7f80a1d000 0x20500    0x20500    com.apple.kpi.iokit (14.4.0)
    4  120 0xffffff7f80a03000 0xbf50     0xbf50     com.apple.kpi.libkern (14.4.0)
    5  103 0xffffff7f80a00000 0x2d50     0x2d50     com.apple.kpi.mach (14.4.0)
    6   49 0xffffff7f80a3e000 0x8590     0x8590     com.apple.kpi.private (14.4.0)
    7   68 0xffffff7f80a18000 0x4900     0x4900     com.apple.kpi.unsupported (14.4.0)
    8    4 0xffffff7f80e6c000 0xa0000    0xa0000    com.apple.kec.corecrypto (1.0) <7 6 5 4 3 1>
    9    0 0xffffff7f80fa4000 0xc000     0xc000     com.apple.kec.pthread (1) <7 6 5 4 1>
   10    1 0xffffff7f80fd4000 0x9000     0x9000     com.apple.kec.Libm (1) <4>
   11   24 0xffffff7f8140f000 0x9000     0x9000     com.apple.iokit.IOACPIFamily (1.4) <7 6 4 3>
   12   30 0xffffff7f80a47000 0x2f000    0x2f000    com.apple.iokit.IOPCIFamily (2.9) <7 6 5 4 3>
   13    2 0xffffff7f829e5000 0x5f000    0x5f000    com.apple.driver.AppleACPIPlatform (3.1) <12 11 7 6 5 4 3 1>
   14    1 0xffffff7f81125000 0xb000     0xb000     com.apple.driver.AppleFDEKeyStore (28.30) <8 7 6 5 4 3 1>
   15    2 0xffffff7f81408000 0x7000     0x7000     com.apple.iokit.IOReportFamily (31) <5 4 3>
   16    7 0xffffff7f80b2d000 0x26000    0x26000    com.apple.iokit.IOStorageFamily (2.0) <7 6 5 4 3 1>
   17    0 0xffffff7f8150f000 0x19000    0x19000    com.apple.driver.DiskImages (397) <16 7 6 5 4 3 1>
   18    1 0xffffff7f8232c000 0xf000     0xf000     com.apple.driver.AppleCredentialManager (1.0) <7 5 4 3 1>
   19    2 0xffffff7f80f71000 0xd000     0xd000     com.apple.driver.AppleMobileFileIntegrity (1.0.5) <7 6 5 4 3 2 1>
   20    0 0xffffff7f8233b000 0x23000    0x23000    com.apple.driver.AppleKeyStore (2) <19 18 8 7 6 5 4 3 1>
   21    0 0xffffff7f80e69000 0x2000     0x2000     com.apple.security.TMSafetyNet (8) <7 6 5 4 2 1>
   22    2 0xffffff7f80f7e000 0x5000     0x5000     com.apple.kext.AppleMatch (1.0.0d1) <4 1>
   23    1 0xffffff7f80f83000 0x17000    0x17000    com.apple.security.sandbox (300.0) <22 19 7 6 5 4 3 2 1>
   24    0 0xffffff7f80f9a000 0x9000     0x9000     com.apple.security.quarantine (3) <23 22 7 6 5 4 2 1>
   25    0 0xffffff7f82a5b000 0x8000     0x8000     com.apple.nke.applicationfirewall (161) <7 6 5 4 3 1>
   26    0 0xffffff7f829b8000 0x3000     0x3000     com.apple.driver.AppleAPIC (1.7) <4 3>
   27    3 0xffffff7f81395000 0x4000     0x4000     com.apple.iokit.IOSMBusFamily (1.1) <5 4 3>
   28    0 0xffffff7f82a4a000 0x7000     0x7000     com.apple.driver.AppleACPIEC (3.1) <27 13 11 5 4 3>
   29    0 0xffffff7f8223f000 0x4000     0x4000     com.apple.driver.AppleSMBIOS (2.1) <7 4 3>
   30    0 0xffffff7f825e8000 0x3000     0x3000     com.apple.driver.AppleHPET (1.8) <11 7 5 4 3>
   31    0 0xffffff7f8226d000 0x8000     0x8000     com.apple.driver.AppleRTC (2.0) <11 5 4 3 1>
   32    5 0xffffff7f81130000 0x76000    0x76000    com.apple.iokit.IOHIDFamily (2.0.0) <14 7 6 5 4 3 2 1>
   33    0 0xffffff7f82a54000 0x4000     0x4000     com.apple.driver.AppleACPIButtons (3.1) <32 13 11 7 6 5 4 3 1>
   34    0 0xffffff7f82245000 0x8000     0x8000     com.apple.driver.AppleSmartBatteryManager (161.0.0) <27 11 5 4 3 1>
   35    1 0xffffff7f82649000 0x5000     0x5000     com.apple.driver.AppleEFIRuntime (2.0) <7 6 5 4 3>
   36    1 0xffffff7f8264e000 0xb000     0xb000     com.apple.driver.AppleEFINVRAM (2.0) <35 7 6 5 4 3 1>
   37    1 0xffffff7f82388000 0xa000     0xa000     com.apple.driver.AppleIntelLpssGspi (2.0.57) <12 11 7 5 4 3>
   39    1 0xffffff7f82369000 0x8000     0x8000     com.apple.driver.AppleIntelLpssDmac (2.0.57) <12 11 5 4 3>
   40   14 0xffffff7f80a7b000 0x65000    0x65000    com.apple.iokit.IOUSBFamily (720.4.4) <12 7 5 4 3 1>
   41    0 0xffffff7f811ce000 0x22000    0x22000    com.apple.driver.AppleUSBXHCI (710.4.11) <40 12 7 5 4 3 1>
   42    1 0xffffff7f82392000 0x14000    0x14000    com.apple.driver.AppleIntelLpssSpiController (2.0.57) <39 37 11 5 4 3>
   43    1 0xffffff7f825bb000 0x17000    0x17000    com.apple.driver.AppleHSSPISupport (41.3) <42 11 5 4 3 1>
   44    6 0xffffff7f810d2000 0x2c000    0x2c000    com.apple.iokit.IONetworkingFamily (3.2) <7 6 5 4 3 1>
   45    1 0xffffff7f8173e000 0x7000     0x7000     com.apple.driver.mDNSOffloadUserClient (1.0.1b8) <44 4 3 1>
   46    1 0xffffff7f81745000 0xab000    0xab000    com.apple.iokit.IO80211Family (730.60) <44 8 7 6 5 4 3 1>
   47    0 0xffffff7f817f8000 0x5e6000   0x5e6000   com.apple.driver.AirPort.Brcm4360 (930.37.3) <46 45 44 12 7 6 5 4 3 1>
   48    5 0xffffff7f81286000 0xde000    0xde000    com.apple.iokit.IOThunderboltFamily (4.2.2) <5 4 3 1>
   49    0 0xffffff7f82154000 0x1b000    0x1b000    com.apple.driver.AppleThunderboltNHI (3.1.7) <48 12 11 5 4 3 1>
   50    2 0xffffff7f820db000 0x24000    0x24000    com.apple.driver.AppleMultitouchDriver (264.6) <32 5 4 3 1>
   51    0 0xffffff7f825d5000 0x9000     0x9000     com.apple.driver.AppleHSSPIHIDDriver (41.3) <50 43 32 5 4 3 1>
   52    0 0xffffff7f82116000 0x6000     0x6000     com.apple.driver.AppleTopCaseHIDEventDriver (67) <50 32 6 5 4 3 1>
   53    0 0xffffff7f82105000 0x8000     0x8000     com.apple.driver.AppleHIDKeyboard (176.2) <32 4 3>
   54    0 0xffffff7f82142000 0x5000     0x5000     com.apple.driver.AppleThunderboltPCIDownAdapter (2.0.2) <48 12 5 4 3 1>
   55    1 0xffffff7f82196000 0xf000     0xf000     com.apple.driver.AppleThunderboltDPAdapterFamily (4.0.6) <48 11 5 4 3 1>
   56    0 0xffffff7f821c0000 0x6000     0x6000     com.apple.driver.AppleThunderboltDPInAdapter (4.0.6) <55 48 5 4 3 1>
   57    2 0xffffff7f816e6000 0x16000    0x16000    com.apple.iokit.IOAHCIFamily (2.7.5) <5 4 3 1>
   58    0 0xffffff7f829bd000 0x1b000    0x1b000    com.apple.driver.AppleAHCIPort (3.1.2) <57 12 5 4 3 1>
   60    0 0xffffff7f81719000 0x18000    0x18000    com.apple.iokit.IOAHCIBlockStorage (2.7.1) <57 16 6 5 4 3 1>
   61    0 0xffffff7f82024000 0x3000     0x3000     com.apple.driver.XsanFilter (404) <16 5 4 3 1>
   62    0 0xffffff7f81f55000 0xa000     0xa000     com.apple.BootCache (36) <7 6 5 4 3 1>
   63    0 0xffffff7f828da000 0x6000     0x6000     com.apple.AppleFSCompression.AppleFSCompressionTypeZlib (1.0.0) <6 4 3 2 1>
   64    0 0xffffff7f828e2000 0x3000     0x3000     com.apple.AppleFSCompression.AppleFSCompressionTypeDataless (1.0.0d1) <7 6 4 3 2 1>
   66    0 0xffffff7f81e57000 0xde000    0xde000    com.apple.driver.CoreStorage (471.30.1) <16 7 6 5 4 3 1>
   68    0 0xffffff7f8122c000 0x1c000    0x1c000    com.apple.driver.AppleUSBHub (705.4.2) <40 5 4 3 1>
   69    0 0xffffff7f814a8000 0xc000     0xc000     com.apple.driver.AppleUSBEthernet (2.4.13) <44 40 7 5 4 3 1>
   70    1 0xffffff7f80c1d000 0xa000     0xa000     com.apple.driver.AppleUSBComposite (705.4.9) <40 4 3 1>
   72    0 0xffffff7f80c27000 0x7000     0x7000     com.apple.driver.AppleUSBMergeNub (705.4.0) <70 40 4 3 1>
   73    3 0xffffff7f80bc8000 0x2b000    0x2b000    com.apple.iokit.IOSCSIArchitectureModelFamily (3.7.5) <5 4 3 1>
   74    1 0xffffff7f81111000 0x11000    0x11000    com.apple.iokit.IOUSBMassStorageClass (3.7.2) <73 40 16 5 4 3 1>
   75    1 0xffffff7f80fb0000 0x18000    0x18000    com.apple.iokit.IOSCSIBlockCommandsDevice (3.7.5) <73 16 5 4 3 1>
   76    0 0xffffff7f82219000 0x8000     0x8000     com.apple.driver.AppleUSBCardReader (3.5.5) <75 74 73 40 16 5 4 3 1>
   78   15 0xffffff7f814b8000 0x3b000    0x3b000    com.apple.iokit.IOGraphicsFamily (2.4.1) <12 7 5 4 3 1>
   79    2 0xffffff7f82403000 0x6f000    0x6f000    com.apple.iokit.IOAcceleratorFamily2 (156.16) <78 12 7 6 5 4 3 1>
   80    3 0xffffff7f82480000 0x7000     0x7000     com.apple.AppleGraphicsDeviceControl (3.10.24) <7 6 5 4 3 1>
   81    0 0xffffff7f82487000 0x54000    0x54000    com.apple.driver.AppleIntelBDWGraphicsFramebuffer (10.0.6) <80 79 78 15 12 11 7 6 5 4 3 1>
   82    4 0xffffff7f814ff000 0x10000    0x10000    com.apple.iokit.IONDRVSupport (2.4.1) <78 12 7 5 4 3>
   83    1 0xffffff7f81380000 0x13000    0x13000    com.apple.iokit.IOSurface (97.4) <7 5 4 3 1>
   84    0 0xffffff7f824fa000 0x79000    0x79000    com.apple.driver.AppleIntelBDWGraphics (10.0.6) <83 79 78 12 7 6 5 4 3 1>
   85    1 0xffffff7f81399000 0x5000     0x5000     com.apple.iokit.IOSlowAdaptiveClockingFamily (1.0.0) <7 6 5 4 3 1>
   86    0 0xffffff7f82365000 0x2000     0x2000     com.apple.driver.AppleIntelSlowAdaptiveClocking (4.0.0) <85 4 3>
   87    0 0xffffff7f825aa000 0xb000     0xb000     com.apple.driver.AppleHV (1) <7 6 5 4 3 1>
   88    0 0xffffff7f825a5000 0x3000     0x3000     com.apple.driver.AppleHWAccess (1) <7 5 4 3>
   89    5 0xffffff7f81422000 0x1a000    0x1a000    com.apple.driver.AppleSMC (3.1.9) <11 7 5 4 3 1>
   90    0 0xffffff7f81e51000 0x5000     0x5000     com.apple.Dont_Steal_Mac_OS_X (7.0.0) <89 7 4 3 1>
   91    2 0xffffff7f8159b000 0xad000    0xad000    com.apple.iokit.IOBluetoothFamily (4.3.5f8) <15 7 5 4 3 1>
   92    0 0xffffff7f81105000 0x6000     0x6000     com.apple.iokit.IOUserEthernet (1.0.1) <44 6 5 4 3 1>
   95    0 0xffffff7f82174000 0x17000    0x17000    com.apple.driver.AppleThunderboltIP (2.0.2) <48 44 12 5 4 3 1>
   96    4 0xffffff7f81418000 0xa000     0xa000     com.apple.driver.IOPlatformPluginFamily (5.9.1d7) <11 7 6 5 4 3>
   97    1 0xffffff7f8143e000 0x17000    0x17000    com.apple.driver.X86PlatformPlugin (1.0.0) <96 89 40 11 7 6 5 4 3 1>
  100    0 0xffffff7f828ef000 0xa8000    0xa8000    com.apple.driver.AppleCameraInterface (5.36.0) <12 7 6 5 4 3 1>
  101    2 0xffffff7f813a3000 0xe000     0xe000     com.apple.iokit.IOSerialFamily (11) <7 6 5 4 3 1>
  103    2 0xffffff7f81f6c000 0x78000    0x78000    com.apple.vecLib.kext (1.2.0) <10 6 5 4 3>
  104    4 0xffffff7f81fe4000 0x30000    0x30000    com.apple.iokit.IOAudioFamily (203.3) <103 5 4 3 1>
  105    2 0xffffff7f82607000 0xc000     0xc000     com.apple.iokit.IOHDAFamily (272.18.1) <5 4 3 1>
  106    1 0xffffff7f8261a000 0x1c000    0x1c000    com.apple.driver.AppleHDAController (272.18.1) <105 104 78 12 7 6 5 4 3 1>
  109    0 0xffffff7f82324000 0x3000     0x3000     com.apple.driver.AppleLPC (1.7.3) <96 12 5 4 3>
  110    0 0xffffff7f82234000 0x5000     0x5000     com.apple.driver.AppleSMCLMU (2.0.7d0) <89 78 5 4 3>
  111    1 0xffffff7f822d9000 0xe000     0xe000     com.apple.driver.AppleSMBusController (1.0.13d1) <27 12 11 5 4 3>
  112    0 0xffffff7f822ea000 0xe000     0xe000     com.apple.driver.AppleMCCSControl (1.2.12) <111 78 12 11 7 5 4 3 1>
  113    1 0xffffff7f828ae000 0x5000     0x5000     com.apple.driver.AppleBacklightExpert (1.1.0) <82 78 12 5 4 3>
  114    0 0xffffff7f829b0000 0x5000     0x5000     com.apple.driver.AppleBacklight (170.7.4) <113 89 82 78 12 5 4 3>
  115    1 0xffffff7f828ab000 0x3000     0x3000     com.apple.driver.AppleGraphicsControl (3.10.24) <78 12 11 7 5 4 3 1>
  117    1 0xffffff7f80aec000 0x3000     0x3000     com.apple.iokit.IOUSBUserClient (705.4.0) <40 7 5 4 3 1>
  118    1 0xffffff7f82636000 0x13000    0x13000    com.apple.kext.OSvKernDSPLib (1.15) <5 4>
  119    1 0xffffff7f82659000 0x131000   0x131000   com.apple.driver.DspFuncLib (272.18.1) <118 104 103 36 6 5 4 3 1>
  120    0 0xffffff7f82794000 0xab000    0xab000    com.apple.driver.AppleHDA (272.18.1) <119 106 105 104 82 78 6 5 4 3 1>
  121    1 0xffffff7f81683000 0x23000    0x23000    com.apple.iokit.IOBluetoothHostControllerUSBTransport (4.3.5f8) <91 40 12 11 7 5 4 3 1>
  122    0 0xffffff7f816a6000 0x9000     0x9000     com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport (4.3.5f8) <121 91 40 12 11 7 5 4 3>
  124    0 0xffffff7f820d2000 0x5000     0x5000     com.apple.driver.AppleUpstreamUserClient (3.6.1) <78 12 11 7 5 4 3 1>
  125    0 0xffffff7f828cf000 0x7000     0x7000     com.apple.driver.AppleGraphicsDevicePolicy (3.7.7) <115 80 78 12 11 7 6 5 4 3 1>
  126    0 0xffffff7f822cc000 0x4000     0x4000     com.apple.driver.AppleOSXWatchdog (1) <12 7 6 5 4 3 1>
  127    0 0xffffff7f8166f000 0xa000     0xa000     com.apple.iokit.IOBluetoothSerialManager (4.3.5f8) <101 7 5 4 3 1>
  128    0 0xffffff7f82a65000 0x2000     0x2000     com.radiosilenceapp.nke.PrivateEye (1) <4 1>
  129    1 0xffffff7f80aef000 0x3c000    0x3c000    org.virtualbox.kext.VBoxDrv (3.1.4) <7 5 4 3 1>
  130    0 0xffffff7f82a67000 0x8000     0x8000     org.virtualbox.kext.VBoxUSB (3.1.4) <129 117 40 7 5 4 3 1>
  131    1 0xffffff7f81455000 0x7000     0x7000     com.apple.driver.X86PlatformShim (1.0.0) <97 96 89 7 4 3>
  132    0 0xffffff7f822c5000 0x4000     0x4000     com.apple.driver.ApplePlatformEnabler (2.2.0d4) <7 5 4 3>
  133    0 0xffffff7f8288e000 0x14000    0x14000    com.apple.driver.AGPM (110.19.6) <96 82 80 78 12 5 4 3>
  136    0 0xffffff7f8201c000 0x5000     0x5000     com.apple.driver.AudioAUUC (1.70) <104 78 12 11 7 5 4 3 1>
  137    2 0xffffff7f80f0c000 0x5000     0x5000     com.apple.kext.triggers (1.0) <7 6 5 4 3 1>
  138    0 0xffffff7f81f61000 0x9000     0x9000     com.apple.filesystems.autofs (3.0) <137 7 6 5 4 3 1>
  142    0 0xffffff7f82a6f000 0x59000    0x59000    com.apple.filesystems.smbfs (3.0.1) <137 8 7 6 5 4 3 1>
  143    0 0xffffff7f82ac8000 0xe000     0xe000     com.apple.nke.asp-tcp (8.0.0) <7 6 5 4 3 1>
  144    1 0xffffff7f82ad6000 0x11000    0x11000    com.apple.security.SecureRemotePassword (1.0) <5 4 1>
  145    0 0xffffff7f82ae7000 0x53000    0x53000    com.apple.filesystems.afpfs (11.0) <144 7 6 5 4 3 1>
  191    0 0xffffff7f82b3a000 0x4000     0x4000     com.apple.driver.AppleUSBCDC (4.3.3b1) <40 4 3>
  192    0 0xffffff7f82b3e000 0x6000     0x6000     com.silabs.driver.CP210xVCPDriver (4.1.1) <101 40 4 3>
@MacDada

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commented Jul 8, 2015

@marcoskirsch Thx, you do have the kext loaded… com.silabs.driver.CP210xVCPDriver (4.1.1)

The question is: why is it not my case? How do I debug this?

@MacDada

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commented Jul 8, 2015

http://community.silabs.com/t5/Interface/OS-X-10-10-CP210x-VCP-Driver-Release-Candidate/td-p/138472

$ codesign -vvvvd /Library/Extensions/SiLabsUSBDriver.kext/
Executable=/Library/Extensions/SiLabsUSBDriver.kext/Contents/MacOS/SiLabsUSBDriver
Identifier=com.silabs.driver.CP210xVCPDriver
Format=bundle with Mach-O thin (x86_64)
CodeDirectory v=20200 size=497 flags=0x0(none) hashes=17+3 location=embedded
Hash type=sha1 size=20
CDHash=8cc52c4b61556244b230f7e6eed6b18dce4b763d
Signature size=8584
Authority=Developer ID Application: Silicon Laboratories Inc (52444FG85C)
Authority=Developer ID Certification Authority
Authority=Apple Root CA
Timestamp=23 Jun 2015 21:34:41
Info.plist entries=18
TeamIdentifier=52444FG85C
Sealed Resources version=2 rules=12 files=2
Internal requirements count=1 size=228
$ kextutil -tn /Library/Extensions/SiLabsUSBDriver.kext
/Library/Extensions/SiLabsUSBDriver.kext appears to be loadable (including linkage for on-disk libraries).

But it doesn't tell me anything…


Edit:
I followed http://community.silabs.com/t5/Interface/OS-X-10-10-CP210x-VCP-Driver-Release-Candidate/m-p/138522#M1691

I did sudo kextutil /Library/Extensions/SiLabsUSBDriver.kext. Now the driver appears in loaded kexts!

$ kextstat | grep silabs
  133    0 0xffffff7f82a41000 0x6000     0x6000     com.silabs.driver.CP210xVCPDriver (4.1.1) <123 37 4 3>

But it's not shown in the dev list:

$ ls /dev/tty.*
/dev/tty.Bluetooth-Incoming-Port    /dev/tty.Bluetooth-Modem    /dev/tty.DadaFon4-WirelessiAP
@abl

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commented Jul 8, 2015

Does /dev/cu.SLAB_USBtoUART exist?

Try the following:

# Unplug your NodeMCU
ioreg -w 0 > ~/no-device.txt
# Plug your NodeMCU in
ioreg -w 0 > ~/with-device.txt
diff ~/with-device.txt ~/no-device.txt > ~/diff-device.txt

and upload diff-device.txt as a gist?

There's also a ~known issue with some serial bridges where they have trouble on USB3 - the workaround is to plug in a USB1/USB2 hub in to the USB3 port and then plug your device in to the hub.

@MacDada

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commented Jul 9, 2015

Does /dev/cu.SLAB_USBtoUART exist?
@abl It did not.


Anyway, it works. I just had a bad cable (3 of them o.O). After I plugged in a borrowed Samsung's phone cable, it started working o.O

I guess it's true that some USB cables are only for the power and not every USB cable can exchange data…


$ ls /dev/tty.*
/dev/tty.Bluetooth-Incoming-Port    /dev/tty.DadaFon4-WirelessiAP
/dev/tty.Bluetooth-Modem        /dev/tty.SLAB_USBtoUART

:D

@MacDada MacDada closed this Jul 9, 2015

@MacDada MacDada changed the title CP2102 OSX drivers? CP2102 OSX drivers? [solved: make sure your USB cable is OK] Jul 9, 2015

@piejanssens

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commented Feb 6, 2016

Exact same problem here. I tried 2 cables already but no SiLabs com port yet..
Any way to quickly validate if the cable is the issue or not?
(OS X 10.11.4)

Edit found more similar issues but no solution:
http://community.silabs.com/t5/Interface/CP210x-USB-to-UART-Bridge-VCP-Driver-Problem-with-OS-X-El/td-p/155165

@bosschaert

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commented Feb 11, 2016

I'm having the same problem on OSX 10.11.3. The cable is definitely good because it works perfectly fine in a Windows VM on the same machine.

@adithyaselv

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commented Feb 29, 2016

Not working in el capitan 10.11.3 !! :/ works perfectly on windows machine though

@kgprocks

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commented Mar 25, 2016

I am also facing the exact same issue. It gets detected for the first time and then "error: cannot access /dev/cu.SLAB_USBtoUART" appears. After restarting laptop, it detects the /dev/cu.SLAB_USBtoUART and then exact same issue.

@hongkongkiwi

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commented Jun 2, 2016

Hi Guys,

It looks like this is because the official driver is not signed and in 10.10 & 10.11 they have kext signing :-(

The solution which worked for me is to install this driver from another vendor which is signed, but works just fine!

http://blog.sengotta.net/signed-mac-os-driver-for-winchiphead-ch340-serial-bridge/

@fadushin

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commented Jun 9, 2016

I am experiencing the same issue on OS X 10.11.5 (MacBook Pro (Retina, 15-inch, Mid 2014)), using a Wemos D1 Mini and an Amazon USB Cable.

The kernel extension is loaded:

> kextstat | grep -i silabs
  151    0 0xffffff7f832ab000 0x6000     0x6000     com.silabs.driver.CP210xVCPDriver (4.10.11) CF83A369-EA70-3E24-B8FE-7351DCF03430 <123 39 4 3>

But there is no /dev/tty.SLAB_USBtoUART:

> ls tty.*
tty.Bluetooth-Incoming-Port

Under System Information the USB device (when attached) shows up as USB2.0-Serial under the USB 3.0 Bus tree:

USB 3.0 Bus:

  Host Controller Driver:   AppleUSBXHCILPTH
  PCI Device ID:    0x8c31 
  PCI Revision ID:  0x0005 
  PCI Vendor ID:    0x8086 

...

USB2.0-Serial:

  Product ID:   0x7523
  Vendor ID:    0x1a86
  Version:  2.54
  Speed:    Up to 12 Mb/sec
  Location ID:  0x14200000 / 12
  Current Available (mA):   1000
  Extra Operating Current (mA): 0

I have diff'd the results of ioreg as suggested above at gist'd at

https://gist.github.com/fadushin/d4c17e73be26cece8e8cddb6edd704bb

I am disinclined to install an unsigned kernel extension or otherwise not readily downloadable from a reputable vendor, particularly if it is reported to cause kernel panics.

And, hi, @bosschaert !

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commented Jun 9, 2016

I installed the Arduino IDE with the ESP8266 addon (as described here https://learn.sparkfun.com/tutorials/esp8266-thing-hookup-guide/installing-the-esp8266-arduino-addon ) and the /dev/cu.SLAB_USBtoUART magically appeared for me. I'm unsure whether it came with the Arduino IDE or with the addon, but its now just working for me.

PS hi @fadushin !

@fadushin

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commented Jun 10, 2016

Silly me. My Wemos D1 Mini uses a CH340G chip, not the CP2102 (my son's magnifying glass comes in handy). Of course that driver won't work. Using the driver with the right chip actually works.

> kextstat | grep -i silabs
  158    0 0xffffff7f83281000 0x6000     0x6000     com.silabs.driver.CP210xVCPDriver (4.10.11) CF83A369-EA70-3E24-B8FE-7351DCF03430 <123 39 4 3>

> ls tty.*
tty.Bluetooth-Incoming-Port tty.SLAB_USBtoUART

NB. The CH340G driver can be found at

http://www.wemos.cc/downloads/

And instructions are at

http://kig.re/2014/12/31/how-to-use-arduino-nano-mini-pro-with-CH340G-on-mac-osx-yosemite.html

@chevdor

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commented Dec 8, 2016

If someone runs into such an issue, really DO check many cables.
I run into the exact same steps than @MacDada and nothing worked.

I have 2 Mac running Sierra and my ESP8266 works in one and not the other. I could validate a cable to be working on my iMac but it would not on my MBP2016.

I tested randomly many cables, some work, some don´t. Most of those cables usually work fine.

Conclusion: do test many cables....
I would also mention that usually, the best cables are those that are short and thick (as a rule of thumb...).

@glauciom

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commented Mar 7, 2017

Try to use a USB hub with a power source, like this one: https://i.stack.imgur.com/pzG2u.gif
I had issues when I was trying to use a Presonus Audiobox USB - I've bought this hub, plugged it at the power source and plugged the hardware at the hub and then the USB hub at the Mac book Air's USB port.

@XicoBHZ

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commented Apr 12, 2017

Guys, can you help me. I've just got my NODEMCU ESP-12e with CP2102 (1.0), I'm using a MAC AIR, but the device doesn't appear on the PORT list, as some of the guys above. I'be tried different cables as well a USB interface that allows me to input an extra 5V DC PSU to feed the NODEMCU, no response at all. The Blink sketch compiles OK, the board is correctly set for NODEMCU 1.0 (ESP-12e Module), but no way to make it works. I heard that I should download a driver for CP2102, is it right? If so, where can I find it? Any help? Thanks!

@AddoSolutions

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commented Jul 21, 2017

I just experienced this exact same issue. It ended up taking me a couple hours to figure it out, but I established a highly technical definition of the problem:

My cable was bad

🤦‍♂️

@jimprince

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commented Sep 1, 2017

TL;DR: Use a short fat cable

I'm going to go ahead and say it is a cable problem, but not a bad cable. I had to try every single one of the dozen or so that I have and I'm not throwing any of them away after this. Consistent with @chevdor, the short, fat cable did the trick, which would seem to suggest that for some reason the tiny voltage drop across a longer or thinner cable makes the signal from the CP2102 just too weak for the chipset on a mac to interpret, which is an absurd explanation. I suppose I could pull out the old oscilloscope to validate that but....

Anyways, I had to steal the cable from my wife so I'm ordering this one (https://www.amazon.com/gp/product/B013G4EAEI) off amazon. If it doesn't work I'm sure I'll be back with some oscilloscope tracings.

Happy cable hunting!

@sleepdefic1t

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commented Sep 9, 2017

Same issues.
Ended up here.

Tried better cable.
Showed up right away!

Thank you, all!

@jacobtarter

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commented Sep 11, 2017

What kind of cables are you guys using that are working? I'm having this issue right now, and the ~18" anker powerline cable (along with 3 or 4 others) are all not showing the device. Seems ridiculous that it could be this sensitive to which cable is needed

@sleepdefic1t

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commented Sep 11, 2017

@jacobtarter
Well, depending on the issue, it might not be your cable.
After all the troubleshooting steps I followed, the cable ended up being the issue for me.

And it's because not all cables are equal.
Some are cheap and good, some are cheap and bad;
Some are pricey and good, some are pricey and shit.
Some only do power; some do data, but poorly.

I can tell you with certainty that this is by FAAAAAAAR not the only tech that's picky about which cable you use.

@chevdor

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commented Sep 14, 2017

@jacobtarter

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commented Sep 18, 2017

The cable I was using wasn't a power only cable, although anker does make those (power line + I think theyre called).

Anyway, I hooked it up to an older desktop running elementary os and it detected it immediately.

@VivienGiraud

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commented Sep 27, 2017

Thanks @fadushin !! You opened my eyes too ! I have an esp32 by Wemos and it's the same chip as you ....
Doing this and restart did it:

brew tap mengbo/ch340g-ch34g-ch34x-mac-os-x-driver https://github.com/mengbo/ch340g-ch34g-ch34x-mac-os-x-driver
brew cask install wch-ch34x-usb-serial-driver
@Basirk

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commented Nov 2, 2017

So to be clear, NodeMCU ESP12E devkit boards (and others?) come with different USB Serial chips.
Some have a SiLabs CP210x.
Some have a WCH (Winchiphead) CH340.

You can tell which you have by a) looking at the top of the chip, or b) plugging the board into your Mac and then opening System Information. Go to Hardware -> USB. Find the USB2.0-Serial device, and look at the details.
A CH340 will have Vendor ID: 0x1a86 and Product ID: 0x7523.
SiLabs website says their Vendor ID is 0x10C4 and the Product ID is 0xEA60, 0xEA70 or 0xEA71.

The latest Mac drivers for the CH340 can be found here direct from WCH (version 1.4 released Jan 2017):
http://www.wch.cn/download/CH341SER_MAC_ZIP.html
The works with my MacOSX Sierra 10.12.6.

Most documentation seems to assume you have a SiLabs CP210x chip, so if you end up here because your USB serial driver isn't working (like I did), hopefully you'll find this useful.

@zhaxidele

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commented Dec 19, 2017

Thank you guys, solved this problem by reinstalling the driver.

@jimprince

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commented Jan 12, 2018

Checking back in. I still same problem with a new cable and reinstalled driver. It's intermittent so I suppose I'll just live with it...

@joedeveloper

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commented Jan 29, 2018

I am also having issues with this, have multiple boards, just one was presenting errors, tried different cables. Ultimately I decided to try a different USB port on my macbook pro - It worked!

@ggrelet

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commented Jan 31, 2018

@Basirk thanks for your useful piece of information!
My USB section on the Hardware macOS pref panel says I have a CP2102 USB to UART Bridge Controller. But the line is shown whether my chip is plugged or not... Does this mean it is the type of my board or simply one of the countless drivers I tried to install to make my board work?

Let me precise that it's responding through the /dev/cu.SLAB_USBtoUART because I was able to flash a binary thanks to nodemcu-flasher. The wifi is showing under the name ESB_1BA06D and seems to be connectable. But the following command only shows:

$ ls /dev/cu.*
/dev/cu.Bluetooth-Incoming-Port /dev/cu.SLAB_USBtoUART /dev/cu.UEBOOM2-LWACP /dev/cu.UEBOOM2-LWACP-1

Which won't let me use the board through the Arduino official IDE.

I tried two cable made for data sharing (Android device official cable) and another one that reportedly worked on my friends MBA with the same chip (I've a MBP)

@ericssonanders

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commented Feb 2, 2018

For what it is worth I will add some information regarding this issue.

Short story nodeMCU 1.0 devkit on mpb from 2013. Could not see any drivers in /dev folder. Only did see bluetooth entry in /dev/ from esplorer.

So, the drivers from silabs was the problem. When you install something on high sierra (and before?) there is a security measure that won't allow unsigned drivers to install. Looking into it i found that

MBP:Extensions user$ sudo kextutil -tn /Library/Extensions/SiLabsUSBDriver.kext
Password:
Kext rejected due to system policy: <OSKext 0x7ffbc27082c0 [0x7fff9d917980]> { URL = "file:///Library/StagedExtensions/Library/Extensions/SiLabsUSBDriver.kext/", ID = "com.silabs.driver.CP210xVCPDriver" }
Kext rejected due to system policy: <OSKext 0x7ffbc27082c0 [0x7fff9d917980]> { URL = "file:///Library/StagedExtensions/Library/Extensions/SiLabsUSBDriver.kext/", ID = "com.silabs.driver.CP210xVCPDriver" }
Diagnostics for /Library/Extensions/SiLabsUSBDriver.kext:
Warnings: 
    Dependency lacks appropriate value for OSBundleRequired and may not be available during early boot: 
        com.apple.iokit.IOSerialFamily - Safe Boot

I did not see any error when running the installer from silabs. But if you go to

System preferences -> Security & Drivers

there will be some information at the bottom of the screen regarding this. So, what I did was that I clicked on the link that is supplied in Security & Drivers to allow the driver to be installed (or if it is the installer that is allowed to run). THEN reinstalled the silabs driver but using the legacy drivers. Now, I had seen somewhere that you might had to run the installer twice. So I did that and that was it. Communication to the nodeMCU did work from inside esplorer.

screen shot 2018-02-02 at 12 18 52

@pacificsky

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commented May 18, 2018

@ericssonanders comment is spot-on. I'm on High-Sierra and after manually attempting a kext load via sudo kextutil -tn /Library/Extensions/SiLabsUSBDriver.kext I got the warning prompt in Security & Privacy in Systems Preferences. Allowing the driver load there fixed the issue and /dev/tty.SLAB_USBtoUART shows up.

Here's the note from Apple describing why only some users are hitting this - if you had the driver installed from before upgrading to High Sierra it would have continued to work transparently for you
https://developer.apple.com/library/content/technotes/tn2459/_index.html

@radimek

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commented Jun 7, 2018

Hello, I would like to share my experience. I went trought all recommendations no success. The result is wrong USB-C to USB 3.0 reduction. Interesting is that USB-C reduction is working for external HDD. Strange behaviour, do you have same experience?

@hoosierEE

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commented Sep 18, 2018

Just went through the steps above (including sudo kextutil -tn /Library/Extensions/SiLabsUSBDriver.kext) on one of the 2016+ MBPs with only USB-C ports, but the device did not appear until I spliced a USB 2.0 hub in between the USB C dongle and the NodeMCU.

@haukeg

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commented Feb 7, 2019

If you are having trouble on macOS...

I wrestled with this issue for a couple days on and off. I finally fixed my issue, so I figured recounting my steps for all the other unfortunate sufferers would be worthwhile (even tho I am sure you have read 100 versions of solutions by now).

First off, I followed most of the general recommendations and installed this SiLabs Driver - no luck. Then installed this CH34 driver - no luck (I didn't check to determine which chip I had, just kept trying solutions). When installing the driver(s), I saw the Security many have described, warning for a 3rd party developer trying to access some settings. I did what most suggested and went to System Preferences ➜ Security & Privacy ➜ General and made sure my allowing apps to be downloaded from "Mac App Store and identified developers" - which it was. Still - no luck. Then, after hitting issue after issue, I resorted to assuming I had bad Micro USB cables (charge only) - so I ordered a new USB Sync cable to remove that variable.

I could never get my ESP8266 NodeMCU LUA CP2102 ESP-12E (made by HiLetgo) to show up under Tools > Port in the Arduino IDE (should see "/dev/cu.SLAB_USBtoUART").

After banging my head on it over and over, I tried re-installing the CH34 driver - which popped the security warning again (as described above). This time I clicked the "Goto Settings" button - which simply took me back tot the same System Prefs Security dialog I checked for the "allow apps" setting before. However, this time I noticed there was a subtle macOS option next to those "Allow apps downloaded from" section which said "Some system software was blocked from loading." and here was an "Allow" button. When I tapped the "Allow" button, it popped a dialog that showed both the SiLabs and Ch34 drivers unchecked, which I fixed. After that, voila! It all worked (and on all my USB cables no less).

I cannot say which driver was my solution, but thought the important thing to point out to anyone struggling was to look for the Allow button in Security - I didnt notice it because all solutions I read just called out the "Mac App Store and identified developers" setting in that panel. I had that set before installing the driver and it DID NOT stop the drivers from being blocked, so check for that. Hopefully this helps someone else, what a pain...

@hoosierEE

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commented Feb 8, 2019

Thank you @haukeg for the new information. Do you happen to know the type of Mac used? I've seen slightly different problems between the 2016+ Macbook Pro laptops "with touchbar" versus "without", even when they're supposedly running the same version of MacOS.

@mrsufgi

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commented Mar 12, 2019

@haukeg had exactly the same problem, same solution. Allow your driver to run!

MBR 15 touchbar 10.14.1

@existeundelta

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commented Apr 14, 2019

tried several times , normal, legacy cp2101, ch34, alert in security don't show, also disabled spctl kext-consent, tried several cables
@haukeg very similar as you... but did't see:

"However, this time I noticed there was a subtle macOS option next to those "Allow apps downloaded from" section which said "Some system software was blocked from loading." and here was an "Allow" button"

`
SiLabsUSBDriver:
Version: 5.0.10

don't nkow what to do more...

`

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