serial: doc: .(un)throttle() depends on hardware assisted flow control
authorGeert Uytterhoeven <geert+renesas@glider.be>
Thu, 14 Apr 2016 09:08:09 +0000 (11:08 +0200)
committerJonathan Corbet <corbet@lwn.net>
Fri, 15 Apr 2016 21:59:06 +0000 (15:59 -0600)
commita3bedc3bdc6e640141157636e253d63279860e23
treebbf1a96b92c20a6e1a5b9509144f9e55a2347e70
parentd124fd3bb36ceb40438f10c897ce642386b74b72
serial: doc: .(un)throttle() depends on hardware assisted flow control

Document that .throttle() and .unthrottle() are relevant only if
hardware assisted flow control is enabled.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Documentation/serial/driver