diff options
| author | Peter Hung | 2015-03-17 17:48:26 +0800 |
|---|---|---|
| committer | Johan Hovold | 2015-03-27 17:29:27 +0100 |
| commit | 88d35cffff83cc0b11d6e7a2bef73b602f156da0 (patch) | |
| tree | d57ff8797840ba3afd206d2294823295cead4933 /drivers/usb | |
| parent | 8bb4ca6b56bdf65944d0848561ea8dcf53a87507 (diff) | |
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: Peter Hung <hpeter+linux_kernel@gmail.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/serial/f81232.c | 30 |
1 files changed, 19 insertions, 11 deletions
diff --git a/drivers/usb/serial/f81232.c b/drivers/usb/serial/f81232.c index c00ced1ed281..fd4b7cc29c8a 100644 --- a/drivers/usb/serial/f81232.c +++ b/drivers/usb/serial/f81232.c @@ -600,24 +600,32 @@ static int f81232_carrier_raised(struct usb_serial_port *port) return 0; } +static int f81232_get_serial_info(struct usb_serial_port *port, + unsigned long arg) +{ + struct serial_struct ser; + + memset(&ser, 0, sizeof(ser)); + + ser.type = PORT_16550A; + ser.line = port->minor; + ser.port = port->port_number; + ser.baud_base = F81232_MAX_BAUDRATE; + + 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 serial_struct ser; struct usb_serial_port *port = tty->driver_data; switch (cmd) { case TIOCGSERIAL: - memset(&ser, 0, sizeof ser); - ser.type = PORT_16654; - ser.line = port->minor; - ser.port = port->port_number; - ser.baud_base = 460800; - - if (copy_to_user((void __user *)arg, &ser, sizeof ser)) - return -EFAULT; - - return 0; + return f81232_get_serial_info(port, arg); default: break; } |