can: slcan: allow to send commands to the adapter

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This is a preparation patch for the upcoming support to change the
bitrate via ip tool, reset the adapter error states via the ethtool API
and, more generally, send commands to the adapter.

Since the close command (i. e. "C\r") will be sent in the ndo_stop()
where netif_running() returns false, a new flag bit (i. e. SLF_XCMD) for
serial transmission has to be added.

Link: https://lore.kernel.org/all/20220628163137.413025-7-dario.binacchi@amarulasolutions.com
Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
Tested-by: Jeroen Hofstee <jhofstee@victronenergy.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>

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Dario Binacchi 2022-06-28 18:31:30 +02:00 • committed by Marc Kleine-Budde

parent c4e54b063f

commit 52f9ac85b8

1 changed files with 45 additions and 1 deletions

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drivers/net/can/slcan.c

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