Hi Johan, On 19.01.20 14:58, Johan Hovold wrote:
I just took a quick look at the libosmo-fl2k code and it appears that you claim both interfaces but never set alternate setting 1 for interface 0, which would enable those endpoints. Could you see if that's all that's needed to get your application working again?
Yes, you are right, I had another look at it today and tried exactly that, and it's working now with altsetting 1 of interface 0. I will push a change to osmo-fl2k shortly. There is also an out-of-tree kernel driver that makes use of this device, and might even need interface 1, but I haven't verified this so far: https://github.com/FrescoLogic/FL2000 The question is if there are other devices out there where there are duplicate endpoints on different interfaces. The spec clearly states that this is forbidden, but the USBx0CV Chapter 9 tests do not test for this and pass just fine, so I assume the FL2000 will not be the only device in the market where this mistake has been made. Regards, Steve
