Re: [PATCH v2 2/3] USB: cdc-acm: fix unprivileged TIOCCSERIAL

2021-04-08 Thread Oliver Neukum
Am Donnerstag, den 08.04.2021, 15:16 +0200 schrieb Johan Hovold: > TIOCSSERIAL is a horrid, underspecified, legacy interface which for most > serial devices is only useful for setting the close_delay and > closing_wait parameters. > > A non-privileged user has only ever been able to set the since

[PATCH v2 2/3] USB: cdc-acm: fix unprivileged TIOCCSERIAL

2021-04-08 Thread Johan Hovold
TIOCSSERIAL is a horrid, underspecified, legacy interface which for most serial devices is only useful for setting the close_delay and closing_wait parameters. A non-privileged user has only ever been able to set the since long deprecated ASYNC_SPD flags and trying to change any other *supported*