-
-static int klsi_105_ioctl (struct usb_serial_port *port, struct file * file,
- unsigned int cmd, unsigned long arg)
-{
- struct klsi_105_private *priv = usb_get_serial_port_data(port);
- void __user *user_arg = (void __user *)arg;
-
- dbg("%scmd=0x%x", __FUNCTION__, cmd);
-
- /* Based on code from acm.c and others */
- switch (cmd) {
- case TIOCMIWAIT:
- /* wait for any of the 4 modem inputs (DCD,RI,DSR,CTS)*/
- /* TODO */
- dbg("%s - TIOCMIWAIT not handled", __FUNCTION__);
- return -ENOIOCTLCMD;
-
- case TIOCGICOUNT:
- /* return count of modemline transitions */
- /* TODO */
- dbg("%s - TIOCGICOUNT not handled", __FUNCTION__);
- return -ENOIOCTLCMD;
- case TCGETS: {
- /* return current info to caller */
- int retval;
-
- dbg("%s - TCGETS data faked/incomplete", __FUNCTION__);
-
- retval = verify_area(VERIFY_WRITE, user_arg,
- sizeof(struct termios));
- if (retval)
- return retval;
-
- if (kernel_termios_to_user_termios((struct termios __user *)arg,
- &priv->termios))
- return -EFAULT;
- return(0);
- }
- case TCSETS: {
- /* set port termios to the one given by the user */
- int retval;
-
- dbg("%s - TCSETS not handled", __FUNCTION__);
-
- retval = verify_area(VERIFY_READ, user_arg,
- sizeof(struct termios));
- if (retval)
- return retval;
-
- if (user_termios_to_kernel_termios(&priv->termios,
- (struct termios __user *)arg))
- return -EFAULT;
- klsi_105_set_termios(port, &priv->termios);
- return(0);
- }
- case TCSETSW: {
- /* set port termios and try to wait for completion of last
- * write operation */
- /* We guess here. If there are not too many write urbs
- * outstanding, we lie. */
- /* what is the right way to wait here? schedule() ? */
- /*
- while (klsi_105_chars_in_buffer(port) > (NUM_URBS / 4 ) * URB_TRANSFER_BUFFER_SIZE)
- schedule();
- */
- return -ENOIOCTLCMD;
- }
- default:
- dbg("%s: arg not supported - 0x%04x", __FUNCTION__,cmd);
- return(-ENOIOCTLCMD);
- break;
- }
- return 0;
-} /* klsi_105_ioctl */