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authorAlan Cox <alan@redhat.com>2008-07-22 14:18:03 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2008-07-23 00:03:28 +0400
commit9e98966c7bb94355689478bc84cc3e0c190f977e (patch)
tree928aebbfee524a48aa94a3d3def5249c8846a79a /drivers/usb/serial
parentabbe629ae4011d2020047f41bea9f9e4b0ec4361 (diff)
downloadlinux-9e98966c7bb94355689478bc84cc3e0c190f977e.tar.xz
tty: rework break handling
Some hardware needs to do break handling itself and may have partial support only. Make break_ctl return an error code. Add a tty driver flag so you can indicate driver hardware side break support. Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/usb/serial')
-rw-r--r--drivers/usb/serial/usb-serial.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c
index 51917b0f079a..8c2d531eedea 100644
--- a/drivers/usb/serial/usb-serial.c
+++ b/drivers/usb/serial/usb-serial.c
@@ -395,7 +395,7 @@ static void serial_set_termios(struct tty_struct *tty, struct ktermios *old)
tty_termios_copy_hw(tty->termios, old);
}
-static void serial_break(struct tty_struct *tty, int break_state)
+static int serial_break(struct tty_struct *tty, int break_state)
{
struct usb_serial_port *port = tty->driver_data;
@@ -409,6 +409,7 @@ static void serial_break(struct tty_struct *tty, int break_state)
port->serial->type->break_ctl(tty, break_state);
unlock_kernel();
}
+ return 0;
}
static int serial_read_proc(char *page, char **start, off_t off, int count,