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USB: serial: cp210x: add support for TIOCGICOUNT
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. Link: https://lore.kernel.org/r/20200713105517.27796-4-johan@kernel.org Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Johan Hovold <johan@kernel.org>
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@ -291,6 +291,7 @@ static struct usb_serial_driver cp210x_device = {
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.unthrottle = usb_serial_generic_unthrottle,
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.tiocmget = cp210x_tiocmget,
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.tiocmset = cp210x_tiocmset,
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.get_icount = usb_serial_generic_get_icount,
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.attach = cp210x_attach,
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.disconnect = cp210x_disconnect,
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.release = cp210x_release,
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