linux-kernel - Re: [PATCH 4/4] Input: leds - force the LED status after .probe()

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Message-ID: <20170127173400.GA9511@var.bordeaux.inria.fr>
Date:   Fri, 27 Jan 2017 18:34:00 +0100
From:   Samuel Thibault <samuel.thibault@...-lyon.org>
To:     Benjamin Tissoires <benjamin.tissoires@...hat.com>
Cc:     Dmitry Torokhov <dmitry.torokhov@...il.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Jiri Slaby <jslaby@...e.com>, linux-input@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 4/4] Input: leds - force the LED status after .probe()

Benjamin Tissoires, on Fri 27 Jan 2017 18:13:18 +0100, wrote:
> Once the host has set the initial setting of the LEDs after a new
> USB keyboard gets connected, they appear to have a SET_IDLE command
> sent which turns of the LEDs.
> This means that the initial step of setting the LEDs on a keyboard is
> just reset once .probe() finishes.
> To be sure we set the LEDs, start a delayed task to try to resend
> them after 1 sec.

If there is such issue, I'd say fix the issue (what is sending
SET_IDLE?) instead of working around it.

Samuel