Can't open device on macos 14 (sonoma)

[felipe-op]

Hi,

I'm using this lib indirectly from go-ethereum to interface with a Ledger X device and recently I bumped into this error:

hidapi: failed to open device

This started happening in my Mac with macos 14 (sonoma). Debugging it I noticed the usb.DeviceInfo path got an empty string, which then failed when Open is called.

I tried few things such as:

• Restart host computer
• Restart device
• Change cables
• Run with sudo
• Allow full disk access to the binary
• Install libhid and libusd from scratch (not sure if related)

Nothing worked.

I'm consuming the following versions (copied from go.mod):

	github.com/ethereum/go-ethereum v1.13.4

	github.com/karalabe/usb v0.0.3-0.20230918135828-88ad9302fa2c // indirect

Consuming repo: https://github.com/base-org/eip712sign

Thanks for looking into it!

Please let me know if there is anything I can help with.

[felipe-op]

Also as a side note, cast send --ledger can interface with device.

[felipe-op]

Found a homemade solution to this issue.

When I connect my Ledger, it actually enumerate 3 interfaces, but go-ethereum usbwallet hub arbitrarity picks one. So I decided to change go-ethereum and let it pick the other two. It eventually worked.

The solution requires modifying this file:
https://github.com/ethereum/go-ethereum/blob/d14c07d91e565c0d97cfcee3aa84a08ce08d93bf/accounts/usbwallet/hub.go

And changing the fields usageID and endpointID on line 96.

I changed from 0xffa0, 0 to 0, 2.

I tried to find more documentation from Ledger but didn't find anything useful. Not sure if the patch would work for everybody else, so I'm not proposing a public change. Just sharing my own learning.

[felipe-op]

A little bit more context. Here are the three enumerated devices printed with a simple fmt.Printf("enumerate: %#v", infos)

enumerate: []usb.DeviceInfo{

usb.DeviceInfo{Path:"2c97:4015:01", VendorID:0x2c97, ProductID:0x4015, Release:0x0,   Serial:"",     Manufacturer:"",       Product:"",       UsagePage:0x0,    Usage:0x0, Interface:2,  rawDevice:(*usb._Ctype_struct_libusb_device)(0x6000003cc3c0), rawPort:(*uint8)(0x140002e84a8), rawReader:(*uint8)(0x140002e8498), rawWriter:(*uint8)(0x140002e8499)}, 

usb.DeviceInfo{Path:"",             VendorID:0x2c97, ProductID:0x4015, Release:0x201, Serial:"0001", Manufacturer:"Ledger", Product:"Nano X", UsagePage:0xffa0, Usage:0x1, Interface:-1, rawDevice:interface {}(nil), rawPort:(*uint8)(nil), rawReader:(*uint8)(nil), rawWriter:(*uint8)(nil)}, 

usb.DeviceInfo{Path:"",             VendorID:0x2c97, ProductID:0x4015, Release:0x201, Serial:"0001", Manufacturer:"Ledger", Product:"Nano X", UsagePage:0xf1d0, Usage:0x1, Interface:-1, rawDevice:interface {}(nil), rawPort:(*uint8)(nil), rawReader:(*uint8)(nil), rawWriter:(*uint8)(nil)}

}

[felipe-op]

You can use this version from: https://github.com/felipe-op/go-ethereum/tree/felipe/fix-ledger

[felipe-op]

Closed since there is no bug/issue in the lib. Proposed a fix on go-ethereum instead: ethereum/go-ethereum#28516