@@ -1392,16 +1392,12 @@ static int mos7840_get_serial_info(struct tty_struct *tty,
struct serial_struct *ss)
{
struct usb_serial_port *port = tty->driver_data;
- struct moschip_port *mos7840_port = usb_get_serial_port_data(port);
ss->type = PORT_16550A;
- ss->line = mos7840_port->port->minor;
- ss->port = mos7840_port->port->port_number;
- ss->irq = 0;
- ss->xmit_fifo_size = NUM_URBS * URB_TRANSFER_BUFFER_SIZE;
- ss->baud_base = 9600;
- ss->close_delay = 5 * HZ;
- ss->closing_wait = 30 * HZ;
+ ss->line = port->minor;
+ ss->close_delay = 50;
+ ss->closing_wait = 3000;
+
return 0;
}
TIOCSSERIAL is a horrid, underspecified, legacy interface which for most serial devices is only useful for setting the close_delay and closing_wait parameters. The port parameter is used to set the I/O port and does not make any sense to use for USB serial devices. The xmit_fifo_size parameter could be used to set the hardware transmit fifo size of a legacy UART when it could not be detected, but the interface is limited to eight bits and should be left unset when not used. Similarly, baud_base could be used to set the UART base clock when it could not be detected but might as well be left unset when it is not known. The close_delay and closing_wait parameters returned by TIOCGSERIAL are specified in centiseconds (not jiffies). The driver does not yet support changing these, but let's report back the default values actually used (0.5 and 30 seconds, respectively). Fixes: 3f5429746d91 ("USB: Moschip 7840 USB-Serial Driver") Signed-off-by: Johan Hovold <johan@kernel.org> --- drivers/usb/serial/mos7840.c | 12 ++++-------- 1 file changed, 4 insertions(+), 8 deletions(-)