Commit 88d35cff authored by Peter Hung's avatar Peter Hung Committed by Johan Hovold
Browse files

USB: f81232: clarify f81232_ioctl() and fix 



We extract TIOCGSERIAL section in f81232_ioctl() to f81232_get_serial_info()
to make it clarify.

Also we fix device type from 16654 to 16550A, and set it's baud_base
to 115200 (1.8432MHz/16).

Signed-off-by: default avatarPeter Hung <hpeter+linux_kernel@gmail.com>
Signed-off-by: default avatarJohan Hovold <johan@kernel.org>
parent 8bb4ca6b

drivers/usb/serial/f81232.c

+19 −11
Original line number Diff line number Diff line
@@ -600,24 +600,32 @@ static int f81232_carrier_raised(struct usb_serial_port *port) 
	return 0;

}



static int f81232_ioctl(struct tty_struct *tty,

			unsigned int cmd, unsigned long arg)

static int f81232_get_serial_info(struct usb_serial_port *port,

		unsigned long arg)

{

	struct serial_struct ser;

	struct usb_serial_port *port = tty->driver_data;



	switch (cmd) {

	case TIOCGSERIAL:

		memset(&ser, 0, sizeof ser);

		ser.type = PORT_16654;

	memset(&ser, 0, sizeof(ser));



	ser.type = PORT_16550A;

	ser.line = port->minor;

	ser.port = port->port_number;

		ser.baud_base = 460800;

	ser.baud_base = F81232_MAX_BAUDRATE;



		if (copy_to_user((void __user *)arg, &ser, sizeof ser))

	if (copy_to_user((void __user *)arg, &ser, sizeof(ser)))

		return -EFAULT;



	return 0;

}



static int f81232_ioctl(struct tty_struct *tty,

			unsigned int cmd, unsigned long arg)

{

	struct usb_serial_port *port = tty->driver_data;



	switch (cmd) {

	case TIOCGSERIAL:

		return f81232_get_serial_info(port, arg);

	default:

		break;

	}

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