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--- linux-2.4.22/drivers/usb/serial/pl2303.c 2006-05-12 16:05:17.000000000 -0400
+++ linux-2.4.22-fred/drivers/usb/serial/pl2303.c 2006-05-12 18:00:39.000000000 -0400
@@ -642,14 +642,56 @@ static int wait_modem_info(struct usb_se
return 0;
}
+
static int pl2303_ioctl (struct usb_serial_port *port, struct file *file, unsigned int cmd, unsigned long arg)
{
+ struct pl2303_private *priv = port->private;
+ unsigned int value;
+
dbg("%s (%d) cmd = 0x%04x", __FUNCTION__, port->number, cmd);
switch (cmd) {
case TIOCMIWAIT:
dbg("%s (%d) TIOCMIWAIT", __FUNCTION__, port->number);
return wait_modem_info(port, arg);
+
+ case TIOCMGET:
+ value = ((priv->line_control & CONTROL_DTR) ? TIOCM_DTR : 0)
+ | ((priv->line_control & CONTROL_RTS) ? TIOCM_RTS : 0)
+ | ((priv->line_status & UART_CTS) ? TIOCM_CTS : 0)
+ | ((priv->line_status & UART_DSR) ? TIOCM_DSR : 0)
+ | ((priv->line_status & UART_RING) ? TIOCM_RI : 0)
+ | ((priv->line_status & UART_DCD) ? TIOCM_CD : 0);
+
+ if (put_user(value, (unsigned int *) arg))
+ return -EFAULT;
+ return 0;
+
+ case TIOCMSET:
+ if (get_user(value, (unsigned int *) arg))
+ return -EFAULT;
+ priv->line_control &= ~(CONTROL_RTS | CONTROL_DTR);
+ priv->line_control |= ((arg & TIOCM_RTS) ? CONTROL_RTS : 0);
+ priv->line_control |= ((arg & TIOCM_DTR) ? CONTROL_DTR : 0);
+ return set_control_lines (port->serial->dev, priv->line_control);
+
+ case TIOCMBIS:
+ if (get_user(value, (unsigned int *) arg))
+ return -EFAULT;
+ if (value & TIOCM_RTS)
+ priv->line_control |= CONTROL_RTS;
+ if (value & TIOCM_DTR)
+ priv->line_control |= CONTROL_DTR;
+ return set_control_lines (port->serial->dev, priv->line_control);
+
+ case TIOCMBIC:
+ if (get_user(value, (unsigned int *) arg))
+ return -EFAULT;
+ if (value & TIOCM_RTS)
+ priv->line_control &= ~CONTROL_RTS;
+ if (value & TIOCM_DTR)
+ priv->line_control &= ~CONTROL_DTR;
+ return set_control_lines (port->serial->dev, priv->line_control);
default:
dbg("%s not supported = 0x%04x", __FUNCTION__, cmd);
|
