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>
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@ -600,24 +600,32 @@ static int f81232_carrier_raised(struct usb_serial_port *port)
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return 0;
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}
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static int f81232_get_serial_info(struct usb_serial_port *port,
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unsigned long arg)
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{
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struct serial_struct ser;
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memset(&ser, 0, sizeof(ser));
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ser.type = PORT_16550A;
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ser.line = port->minor;
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ser.port = port->port_number;
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ser.baud_base = F81232_MAX_BAUDRATE;
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if (copy_to_user((void __user *)arg, &ser, sizeof(ser)))
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return -EFAULT;
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return 0;
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}
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static int f81232_ioctl(struct tty_struct *tty,
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unsigned int cmd, unsigned long arg)
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{
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struct serial_struct ser;
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struct usb_serial_port *port = tty->driver_data;
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switch (cmd) {
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case TIOCGSERIAL:
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memset(&ser, 0, sizeof ser);
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ser.type = PORT_16654;
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ser.line = port->minor;
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ser.port = port->port_number;
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ser.baud_base = 460800;
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if (copy_to_user((void __user *)arg, &ser, sizeof ser))
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return -EFAULT;
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return 0;
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return f81232_get_serial_info(port, arg);
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default:
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break;
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}
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