Enable TIOCGICOUNT to allow reading out the (unused) interrupt counters and error statistics. Note that modem-status events are currently left unimplemented as they appear to be buffered on at least CP2102 and therefore cannot be used to implement TIOCMIWAIT. Signed-off-by: Johan Hovold <johan@xxxxxxxxxx> --- drivers/usb/serial/cp210x.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/usb/serial/cp210x.c b/drivers/usb/serial/cp210x.c index 02e4acb2823b..3a65be4a0ec0 100644 --- a/drivers/usb/serial/cp210x.c +++ b/drivers/usb/serial/cp210x.c @@ -291,6 +291,7 @@ static struct usb_serial_driver cp210x_device = { .unthrottle = usb_serial_generic_unthrottle, .tiocmget = cp210x_tiocmget, .tiocmset = cp210x_tiocmset, + .get_icount = usb_serial_generic_get_icount, .attach = cp210x_attach, .disconnect = cp210x_disconnect, .release = cp210x_release, -- 2.26.2