![]() # first bad commit: usb: xhci: Add Clear_TT_Buffer I bisected it and got to the following commit as the culprit: While dmesg shows: usb 1-2.4: 1:1: usb_set_interface failed (-110) Setting of hwparams failed: Input/output error Unable to set hw params for playback: Input/output error Stream parameters are 48000Hz, S16_LE, 2 channels While the USB hub side of it is still working, the audio device fails from kernel version 5.2.0-rc3 onwards. Audio Adapter) / USB hub (Bus 003 Device 006: ID 058f:6254 Alcor Micro Corp. I have an external USB audio device (Bus 003 Device 005: ID 0d8c:000c C-Media Electronics, Inc. Older dmesg log with debug information added Testpatch that doesn't clear TT buffer after protocol STALLĬontent of /sys/kernel/debug/tracing/trace with both patches appliedįull dmesg output with both patches applied Content of /sys/kernel/debug/tracing/trace
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