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(parent: d14654d) | patch
USB: serial: invoke dcd_change ldisc's handler.
authorPaul Chavent <Paul.Chavent@onera.fr>
Mon, 16 Sep 2013 06:41:00 +0000 (08:41 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 26 Sep 2013 16:45:40 +0000 (09:45 -0700)
commit833efc0ed19ce9ed7a84dfd3684eb9d892fe9ded
tree1a693b88ee1c976704262a09b788ef0c4e62f87ctree | snapshot
parentd14654dff7a3520b5220367b848732a0a8ccdabecommit | diff
USB: serial: invoke dcd_change ldisc's handler.

The DCD pin of the serial port can receive a PPS signal. By calling
the port line discipline dcd handle, this patch allow to monitor PPS
through USB serial devices.

However the performance aren't as good as the uart drivers, so
document this point too.

Signed-off-by: Paul Chavent <paul.chavent@onera.fr>
Acked-by: Rodolfo Giometti <giometti@enneenne.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Documentation/pps/pps.txt diff | blob | history
drivers/usb/serial/generic.c diff | blob | history
John Crispins staging tree