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Commit 0693196f authored by Johan Hovold's avatar Johan Hovold Committed by Greg Kroah-Hartman
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USB: serial: add wait_until_sent operation 



Add wait_until_sent operation which can be used to wait for hardware
buffers to drain.

Signed-off-by: default avatarJohan Hovold <jhovold@gmail.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 3b9561e9
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