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. The close_delay and closing_wait parameters returned by TIOCGSERIAL are specified in centiseconds. The driver does not yet support changing close_delay, but let's report back the default value actually used (0.5 seconds). Signed-off-by: Johan Hovold <johan@xxxxxxxxxx> --- drivers/usb/serial/ti_usb_3410_5052.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/usb/serial/ti_usb_3410_5052.c b/drivers/usb/serial/ti_usb_3410_5052.c index 7252b0ce75a6..4b497c1e850b 100644 --- a/drivers/usb/serial/ti_usb_3410_5052.c +++ b/drivers/usb/serial/ti_usb_3410_5052.c @@ -1406,10 +1406,10 @@ static int ti_get_serial_info(struct tty_struct *tty, ss->type = PORT_16550A; ss->line = port->minor; - ss->port = port->port_number; - ss->xmit_fifo_size = kfifo_size(&port->write_fifo); ss->baud_base = tport->tp_tdev->td_is_3410 ? 921600 : 460800; + ss->close_delay = 50; ss->closing_wait = cwait; + return 0; } -- 2.26.3
