| commit | fc61ed51270e86440cf7cf84cbe1d86753592932 | |
| author | Okash Khawaja <okash.khawaja@gmail.com> | |
| Sun, 25 Jun 2017 18:40:00 +0000 (25 19:40 +0100) | ||
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | |
| Tue, 27 Jun 2017 07:08:47 +0000 (27 09:08 +0200) | ||
| tree | c5df76a420a96193eb49c8218e4be192b7d87358 | treesnapshot (tar.gz zip) |
| parent | 97ae021ab818fe29ac78d3acc0ecc6d85fc7cd5b | commitdiff |
tty: add function to convert device name to number
The function converts strings like ttyS0 and ttyUSB0 to dev_t like
(4, 64) and (188, 0). It does this by scanning tty_drivers list for
corresponding device name and index. If the driver is not registered,
this function returns -ENODEV. It also acquires tty_mutex.
Signed-off-by: Okash Khawaja <okash.khawaja@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The function converts strings like ttyS0 and ttyUSB0 to dev_t like
(4, 64) and (188, 0). It does this by scanning tty_drivers list for
corresponding device name and index. If the driver is not registered,
this function returns -ENODEV. It also acquires tty_mutex.
Signed-off-by: Okash Khawaja <okash.khawaja@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| drivers/tty/tty_io.c | diffblobblamehistory | |
| include/linux/tty.h | diffblobblamehistory |