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* tty: n_gsm: add ioctl to map serial device to mux'ed ttyMartin Hundebøll2019-09-041-2/+9
| | | | | | | | | | | | Guessing the first tty for a gsm0710 multiplexed serial device is not currently possible, which makes it racy to use with multiple modems. Add a way to map the physical serial tty to its related mux devices using an ioctl. Signed-off-by: Martin Hundebøll <martin@geanix.com> Link: https://lore.kernel.org/r/20190812211243.98686-1-martin@geanix.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* tty: n_gsm: update doc example to use header for N_GSM0710 defineMartin Hundebøll2019-09-041-1/+1
| | | | | | | | | There is no reason to gues the line discipline number when it is available from tty.h Signed-off-by: Martin Hundebøll <martin@geanix.com> Link: https://lore.kernel.org/r/20190710192656.60381-2-martin@geanix.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* tty: n_gsm: remove obsolete mknod doc exampleMartin Hundebøll2019-09-041-12/+2
| | | | | | | | | The n_gsm driver handles registration of /dev/gsmttyX nodes, so there's no need to do mknod manually. Signed-off-by: Martin Hundebøll <martin@geanix.com> Link: https://lore.kernel.org/r/20190710192656.60381-1-martin@geanix.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* docs: serial: move it to the driver-apiMauro Carvalho Chehab2019-07-159-0/+2016
The contents of this directory is mostly driver-api stuff. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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