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USB: pl2303: add custom tiocmiwait operation

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Break out TIOCMIWAIT handling from custom ioctl operation and use
tiocmiwait operation field instead.

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Johan Hovold 2013-03-21 12:37:20 +01:00 • committed by Greg Kroah-Hartman
parent 215f6f0466
commit 824d11bef5
1 changed files with 3 additions and 5 deletions

8
drivers/usb/serial/pl2303.c
View file

@ -593,8 +593,9 @@ static int pl2303_carrier_raised(struct usb_serial_port *port)
return 0;
}
static int wait_modem_info(struct usb_serial_port *port, unsigned int arg)
static int pl2303_tiocmiwait(struct tty_struct *tty, unsigned long arg)
{
struct usb_serial_port *port = tty->driver_data;
struct pl2303_private *priv = usb_get_serial_port_data(port);
unsigned long flags;
unsigned int prevstatus;
@ -652,10 +653,6 @@ static int pl2303_ioctl(struct tty_struct *tty,
return -EFAULT;
return 0;
case TIOCMIWAIT:
dev_dbg(&port->dev, "%s TIOCMIWAIT\n", __func__);
return wait_modem_info(port, arg);
default:
dev_dbg(&port->dev, "%s not supported = 0x%04x\n", __func__, cmd);
break;
@ -836,6 +833,7 @@ static struct usb_serial_driver pl2303_device = {
.set_termios = pl2303_set_termios,
.tiocmget = pl2303_tiocmget,
.tiocmset = pl2303_tiocmset,
.tiocmiwait = pl2303_tiocmiwait,
.process_read_urb = pl2303_process_read_urb,
.read_int_callback = pl2303_read_int_callback,
.attach = pl2303_startup,