Am Samstag, 5. Mai 2007 18:08 schrieb Paul Fulghum:

> If the line discipline throttles the driver input,
> the cdc-acm driver stops giving data to the tty buffering
> and instead stores them internally.

So do usb serial drivers.

> In the serial driver this usually just results in dropping
> RTS to signal the remote end to stop sending. The serial

This may take considerable time in the case of usb devices.

> driver always immediately gives receive data to the tty buffering
> without regard to the throttled state.
> 
> I would argue that cdc-acm should do the same as the serial driver.

Has this been tested?
If so we could reduce the complexity of the throtteling logic in the usb
drivers.

        Regards
                Oliver

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