diff options
| author | Marc Zyngier <maz@kernel.org> | 2026-03-01 12:44:40 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2026-03-11 16:17:55 +0100 |
| commit | 14ae24cba291bddfdc296bbcbfd00cd09d0498ef (patch) | |
| tree | 523ae8f49388dd46bf6effd599817f2d80451a3d /kernel/resource.c | |
| parent | 8479891d1f04a8ce55366fe4ca361ccdb96f02e1 (diff) | |
usb: cdc-acm: Restore CAP_BRK functionnality to CH343
The CH343 USB/serial adapter is as buggy as it is popular (very).
One of its quirks is that despite being capable of signalling a
BREAK condition, it doesn't advertise it.
This used to work nonetheless until 66aad7d8d3ec5 ("usb: cdc-acm:
return correct error code on unsupported break") applied some
reasonable restrictions, preventing breaks from being emitted on
devices that do not advertise CAP_BRK.
Add a quirk for this particular device, so that breaks can still
be produced on some of my machines attached to my console server.
Fixes: 66aad7d8d3ec5 ("usb: cdc-acm: return correct error code on unsupported break")
Signed-off-by: Marc Zyngier <maz@kernel.org>
Cc: stable <stable@kernel.org>
Cc: Oliver Neukum <oneukum@suse.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Oliver Neukum <oneukum@suse.com>
Link: https://patch.msgid.link/20260301124440.1192752-1-maz@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'kernel/resource.c')
0 files changed, 0 insertions, 0 deletions