Re: [PATCH] hidraw: Fix returning EPOLLOUT from hidraw_poll
From: Jiri Kosina
Date: Mon Dec 09 2019 - 07:53:21 EST
On Wed, 4 Dec 2019, Marcel Holtmann wrote:
> When polling a connected /dev/hidrawX device, it is useful to get the
> EPOLLOUT when writing is possible. Since writing is possible as soon as
> the device is connected, always return it.
> Right now EPOLLOUT is only returned when there are also input reports
> are available. This works if devices start sending reports when
> connected, but some HID devices might need an output report first before
> sending any input reports. This change will allow using EPOLLOUT here as
> Fixes: 378b80370aa1 ("hidraw: Return EPOLLOUT from hidraw_poll")
> Signed-off-by: Marcel Holtmann <marcel@xxxxxxxxxxxx>
> Cc: stable@xxxxxxxxxxxxxxx
Applied, thanks Marcel.