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tty: USB serial termios bits

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Various drivers have hacks to mangle termios structures. This stems from
the fact there is no nice setup hook for configuring the termios settings
when the port is created

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Alan Cox
2009-09-19 13:13:33 -07:00
committed by Live-CD User
parent ba15ab0e8d
commit fe1ae7fdd2
11 changed files with 106 additions and 107 deletions
Download Patch File Download Diff File Expand all files Collapse all files

21
drivers/usb/serial/spcp8x5.c
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@@ -299,7 +299,6 @@ struct spcp8x5_private {
wait_queue_head_t delta_msr_wait;
u8 line_control;
u8 line_status;
u8 termios_initialized;
};
/* desc : when device plug in,this function would be called.
@@ -498,6 +497,15 @@ static void spcp8x5_close(struct usb_serial_port *port)
dev_dbg(&port->dev, "usb_unlink_urb(read_urb) = %d\n", result);
}
static void spcp8x5_init_termios(struct tty_struct *tty)
{
/* for the 1st time call this function */
*(tty->termios) = tty_std_termios;
tty->termios->c_cflag = B115200 | CS8 | CREAD | HUPCL | CLOCAL;
tty->termios->c_ispeed = 115200;
tty->termios->c_ospeed = 115200;
}
/* set the serial param for transfer. we should check if we really need to
* transfer. if we set flow control we should do this too. */
static void spcp8x5_set_termios(struct tty_struct *tty,
@@ -514,16 +522,6 @@ static void spcp8x5_set_termios(struct tty_struct *tty,
int i;
u8 control;
/* for the 1st time call this function */
spin_lock_irqsave(&priv->lock, flags);
if (!priv->termios_initialized) {
*(tty->termios) = tty_std_termios;
tty->termios->c_cflag = B115200 | CS8 | CREAD | HUPCL | CLOCAL;
tty->termios->c_ispeed = 115200;
tty->termios->c_ospeed = 115200;
priv->termios_initialized = 1;
}
spin_unlock_irqrestore(&priv->lock, flags);
/* check that they really want us to change something */
if (!tty_termios_hw_change(tty->termios, old_termios))
@@ -1008,6 +1006,7 @@ static struct usb_serial_driver spcp8x5_device = {
.carrier_raised = spcp8x5_carrier_raised,
.write = spcp8x5_write,
.set_termios = spcp8x5_set_termios,
.init_termios = spcp8x5_init_termios,
.ioctl = spcp8x5_ioctl,
.tiocmget = spcp8x5_tiocmget,
.tiocmset = spcp8x5_tiocmset,