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authorŁukasz Bartosik <[email protected]>2023-07-24 13:29:11 +0200
committerGreg Kroah-Hartman <[email protected]>2023-07-25 17:41:22 +0200
commit9dc162e22387080e2d06de708b89920c0e158c9a (patch)
tree2a0cb0b128e938be58befb2719b8476933d789fc /lib/test_fortify/write_overflow-strncpy-src.c
parent9fd10829a9eb482e192a845675ecc5480e0bfa10 (diff)
USB: quirks: add quirk for Focusrite Scarlett
The Focusrite Scarlett audio device does not behave correctly during resumes. Below is what happens during every resume (captured with Beagle 5000): <Suspend> <Resume> <Reset>/<Chirp J>/<Tiny J> <Reset/Target disconnected> <High Speed> The Scarlett disconnects and is enumerated again. However from time to time it drops completely off the USB bus during resume. Below is captured occurrence of such an event: <Suspend> <Resume> <Reset>/<Chirp J>/<Tiny J> <Reset>/<Chirp K>/<Tiny K> <High Speed> <Corrupted packet> <Reset/Target disconnected> To fix the condition a user has to unplug and plug the device again. With USB_QUIRK_RESET_RESUME applied ("usbcore.quirks=1235:8211:b") for the Scarlett audio device the issue still reproduces. Applying USB_QUIRK_DISCONNECT_SUSPEND ("usbcore.quirks=1235:8211:m") fixed the issue and the Scarlett audio device didn't drop off the USB bus for ~5000 suspend/resume cycles where originally issue reproduced in ~100 or less suspend/resume cycles. Signed-off-by: Łukasz Bartosik <[email protected]> Cc: stable <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
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