Re: [PATCH 1/2] mailbox: mailbox-test: add support for fasync/poll

From: Jassi Brar
Date: Sat Dec 10 2016 - 10:21:31 EST

On Fri, Dec 9, 2016 at 12:26 AM, Sudeep Holla <sudeep.holla@xxxxxxx> wrote:
> On 29/11/16 14:37, Sudeep Holla wrote:
>> Currently the read operation on the message debug file returns error if
>> there's no data ready to be read. It expects the userspace to retry if
>> it fails. Since the mailbox response could be asynchronous, it would be
>> good to add support to block the read until the data is available.
>> We can also implement poll file operations so that the userspace can
>> wait to become ready to perform any I/O.
>> This patch implements the poll and fasync file operation callback for
>> the test mailbox device.
>> Cc: Lee Jones <lee.jones@xxxxxxxxxx>
>> Cc: Jassi Brar <jaswinder.singh@xxxxxxxxxx>
>> Signed-off-by: Sudeep Holla <sudeep.holla@xxxxxxx>
> Gentle Ping!
Would be good to have Lee's ack.