From: Johan Hovold <jhovold@gmail.com>
Date: Sun, 5 May 2013 18:32:27 +0000 (+0200)
Subject: USB: serial: add wait_until_sent operation
X-Git-Tag: v3.10-rc3~26^2~12
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0693196fe7bbb5e6cafd255dfce91ff6d10bc18f;p=pandora-kernel.git

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: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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