doc: explicitly state that the ctxless event poll callback can be NULL
authorBartosz Golaszewski <bartekgola@gmail.com>
Fri, 26 Jan 2018 09:58:18 +0000 (10:58 +0100)
committerBartosz Golaszewski <bartekgola@gmail.com>
Fri, 26 Jan 2018 09:58:18 +0000 (10:58 +0100)
commit45c5fbf7c9c2b9e3b596e8c4a4961ce586a19dcb
tree01175ae24252f14b0a98b8903e063dc235f87669
parent3eb0c52ad5f1ef03ca3a5d8dbcf6512873d1fef1
doc: explicitly state that the ctxless event poll callback can be NULL

This is mentioned later in the text, but state it in the argument's
description too.

Signed-off-by: Bartosz Golaszewski <bartekgola@gmail.com>
include/gpiod.h