macOS: Trezor T - Could not open client ... image not found

[Sjors]

If I don't insert or unlock the device enumerate returns [] as expected. Once unlocked I get:

./hwi.py enumerate
INFO:trezorlib.transport:looking for device by full path: hid:IOService:/AppleACPIPlatformExpert/PCI0@0/AppleACPIPCI/XHC1@14/XHC1@14000000/HS10@14600000/TREZOR@14600000/TREZOR Interface@1/IOUSBHostHIDDevice@14600000,1
[{"type": "trezor", "path": "IOService:/AppleACPIPlatformExpert/PCI0@0/AppleACPIPCI/XHC1@14/XHC1@14000000/HS10@14600000/TREZOR@14600000/TREZOR Interface@1/IOUSBHostHIDDevice@14600000,1", "serial_number": "#################", "error": "Could not open client or get fingerprint information: dlopen(libusb-1.0.dylib, 6): image not found"}]

# serial number censored by me

trezor-0.10.2 and hidapi 0.7.99.post2

[achow101]

I don't have a Trezor T so I can't test this. You should check the https://github.com/trezor/python-trezor if there is anything specific about it that is necessary.

[matejcik]

Trezor T communicates over webusb (implemented by libusb), not hidapi. I'm honestly not sure what's going on in your error message - the command is complaining that libusb-1.0.dylib is not available, which means that your libusb isn't installed properly.
But I suspect that this would just fail a little bit later because HWI forces a path that starts with "hid:". Trezor T exposes a HID interface for U2F but you won't be able to send commands to it.

[yashbhutwala]

Hey guys, I'm getting the same error as @Sjors but with a Trezor One. I'm not sure if it's something to do with libusb1 dependency on Mac?

[yashbhutwala]

Ok, so reinstalling libusb moved it along, so now it asks for a pin:

brew rm libusb --force
brew install libusb

But after entering the pin, now I'm getting this error:

{"type": "trezor", "path": "IOService:/AppleACPIPlatformExpert/PCI0@0/AppleACPIPCI/XHC1@14/XHC1@14000000/HS02@14200000/TREZOR@14200000/U2F Interface@1/IOUSBHostHIDDevice@14200000,1", "serial_number": "XXX", "error": "Could not open client or get fingerprint information: hid device not found: hid:IOService:/AppleACPIPlatformExpert/PCI0@0/AppleACPIPCI/XHC1@14/XHC1@14000000/HS02@14200000/TREZOR@14200000/U2F Interface@1/IOUSBHostHIDDevice@14200000,1"}

[matejcik]

@yashbhutwala are you by any chance on firmware 1.7.1 ? that uses webusb too.

[Sjors]

Reinstalling libusd had the same effect for me, so now I get the hid device not found error, as @matejcik predicted. I'll make a new ticket to add webusb support.

[yashbhutwala]

@matejcik I'm on firmware version 1.6.3. Does that also use webusb for Trezor One?

[matejcik]

no, 1.6.3 uses hid. that means your problem is caused by something else pá 9. 11. 2018 14:30 odesílatel Yash <notifications@github.com> napsal:

…

@matejcik <https://github.com/matejcik> I'm on firmware version 1.6.3. Does that also use webusb for Trezor One? — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#38 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AAkYaTu4N0Og1xA5oMOehZG2x9IpmrLiks5utYNwgaJpZM4WqXEc> .

[yashbhutwala]

@matejcik Hmm, ok the error I'm getting is about the U2F interface it seems and I don't really need that...

"error": "Could not open client or get fingerprint information: hid device not found: hid:IOService:/AppleACPIPlatformExpert/PCI0@0/AppleACPIPCI/XHC1@14/XHC1@14000000/HS02@14200000/TREZOR@14200000/U2F Interface@1/IOUSBHostHIDDevice@14200000,1"