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| author | Johan Hovold <johan@kernel.org> | 2021-04-07 12:39:14 +0200 |
|---|---|---|
| committer | Johan Hovold <johan@kernel.org> | 2021-04-08 09:45:58 +0200 |
| commit | 4c47dc2a3a00cb288fc4888691227927430e2683 (patch) | |
| tree | 96f12da4d71ff006b90e1934f11f82e67d906dfe /drivers/usb | |
| parent | 67a948779067f5b2e4e0c5aa67d010c525c8a0ad (diff) | |
| download | linux-stable-4c47dc2a3a00cb288fc4888691227927430e2683.tar.gz linux-stable-4c47dc2a3a00cb288fc4888691227927430e2683.tar.bz2 linux-stable-4c47dc2a3a00cb288fc4888691227927430e2683.zip | |
USB: serial: ti_usb_3410_5052: fix TIOCGSERIAL implementation
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).
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/serial/ti_usb_3410_5052.c | 4 |
1 files 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; } |