Error Opening SMBusb: libusb error -11

[tremez]

Hi
I am constantly getting following error :
Error Opening SMBusb: libusb error -11
both for smbusb_sbsreport and smbusb_scan

Device is enumerated as
Bus 001 Device 006: ID 04b4:8613 Cypress Semiconductor Corp. CY7C68013 EZ-USB FX2 USB 2.0 Development Kit

Any assistance is appreciated

[0r10nV]

If you are working in Linux check permissions.
Same issue was solved here.

http://www.karosium.com/2016/08/hacking-bq8030-with-sanyo-firmware.html?showComment=1511814009888#c8945243386522181427

[tremez]

I am running under root in the Virtualbox VM
There are no errors in dmesg
[Thu Nov 28 13:55:10 2019] usb 1-1: new high-speed USB device number 3 using ehci-pci
[Thu Nov 28 13:55:11 2019] usb 1-1: New USB device found, idVendor=04b4, idProduct=8613
[Thu Nov 28 13:55:11 2019] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
lsusb
Bus 001 Device 003: ID 04b4:8613 Cypress Semiconductor Corp. CY7C68013 EZ-USB FX2 USB 2.0 Development Kit

root@bubuntu:# smbusb_sbsreport
Error Opening SMBusb: libusb error -11
root@bubuntu:#

[tremez]

Tried sigrok on same VM - all works like a charm

[tremez]

error -11 sound like LIBUSB_ERROR_NO_MEM

[tremez]

After some random manipulations i see that device ID have changed to SMBUsb and following dat a was received
SMBusb Firmware Version: 1.0.1

Manufacturer Name: ERROR
Device Name: ERROR
Device Chemistry: ERROR
Serial Number: 4294967287
Manufacture Date: 8390587.15.23

Manufacturer Access: fffffff7
Remaining Capacity Alarm: 4294967287 mAh(/10mWh)
Remaining Time Alarm: 4294967287 min
Battery Mode: fffffff7
At Rate: -9 mAh(/10mWh)
At Rate Time To Full: 4294967287 min
At Rate Time To Empty: 4294967287 min
At Rate OK: 4294967287
Temperature: -274.05 degC
Voltage: 4294967287 mV
Current: -9 mA
Average Current: -9 mA
Max Error: 4294967287 %
Relative State Of Charge 4294967287 %
Absolute State Of Charge 4294967287 %
Remaining Capacity: 4294967287 mAh(/10mWh)
Full Charge Capacity: 4294967287 mAh(/10mWh)
Run Time To Empty: 4294967287 min
Average Time To Empty: 4294967287 min
Average Time To Full: 4294967287 min
Charging Current: 4294967287 mA
Charging Voltage: 4294967287 mV
Battery Status: fffffff7
Cycle Count: 4294967287
Cell 0 voltage: 0 mV
Cell 1 voltage: 0 mV
Cell 2 voltage: 0 mV
Cell 3 voltage: 0 mV

[tremez]

Ok, I won it
Problem was due to virtual box usb settings, i had to select USB3 instead USB2.
Hope it helps for the future

[0r10nV]

Good to know!

Meanwhile have looked through the code and noticed error -11 in that particular case means error downloading firmware to device and not the LIBUSB_ERROR_NO_MEM.
It comes from InitDevice() function and defined in libsmbusb.h header,

#define ERR_FIRMWARE_DOWNLOAD -11

@karosium
Could we redefine it to something unique to avoid confusion?

[karosium]

@tremez:
Glad you could get it to work

@0r10nV:
I'll look into this when I have some free time. I've been meaning to add human-readable error messages since the release.