USB: serial: ftdi_sio: clean up baudrate request

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Multi-channel devices need to encode the channel selector in their
control requests and newer single-channel chip types use the same
request format.

Set the channel index also for these single-channel types so that the
index can be used to determine the baudrate request format instead of
listing types explicitly.

Note that FT232H and FTX accept either 0 or 1 as selector for their
single channel, presumably for backward compatibility reasons.

Signed-off-by: Johan Hovold <johan@kernel.org>

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Johan Hovold 2022-09-11 16:02:13 +02:00

parent 4d045b98fb

commit a146cc4d46

1 changed files with 3 additions and 6 deletions

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drivers/usb/serial/ftdi_sio.c

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