From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 4885535EFA; Fri, 5 Jan 2024 19:20:37 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="phYhUVJq" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 8AD4FC433C8; Fri, 5 Jan 2024 19:20:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1704482437; bh=tMkCuPLhjvtW1KI3dBC+aiHw8UbihjiGkW/WeW2FzgI=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=phYhUVJq5VBxL8Cpap4RtnWIlElfSOSKhgWqEesd7ylEb/uhxL7gz12x50pgeWZOW dBtA3golTt1HJ9J0UIbMqYMEmWNa7msVjVJs4XPzAGg2WgHKiRs2zNCukYEXtyL+su 1aT/erUOjx0b7vixhZ0v1rA/5CEJjSgy2M7SbML0mKXBkoI6uRpBHWf58xRn5Tu5hP KZ5Ry2KgyQCfqb1EtbEp1Xi54clm0iTp25z96gAONgYyH35F8jk1NDfTefi6T8+Iy6 fVekM/44tjDO6bFbPC0f+mjH87ZyzQ7KF+k/9ngCzc1wipfajzsWZL7rLe0ZMqqby9 pThpu1pLSxJ5g== Received: by pali.im (Postfix) id 7CDCFA52; Fri, 5 Jan 2024 20:20:34 +0100 (CET) Date: Fri, 5 Jan 2024 20:20:34 +0100 From: Pali =?utf-8?B?Um9ow6Fy?= To: Andy Shevchenko Cc: Hans de Goede , Jean Delvare , Andi Shyti , Eric Piel , Paul Menzel , Ilpo =?utf-8?B?SsOkcnZpbmVu?= , Andy Shevchenko , Dell.Client.Kernel@dell.com, Marius Hoch , Kai Heng Feng , Wolfram Sang , platform-driver-x86@vger.kernel.org, linux-i2c@vger.kernel.org Subject: Re: [PATCH 5/6] platform/x86: dell-smo8800: Instantiate an i2c_client for the IIO st_accel driver Message-ID: <20240105192034.f2zoholvmbogw7ko@pali> References: <20231224213629.395741-1-hdegoede@redhat.com> <20231224213629.395741-6-hdegoede@redhat.com> <20231224220321.vqzb4q3ut3dz3rl2@pali> Precedence: bulk X-Mailing-List: linux-i2c@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: User-Agent: NeoMutt/20180716 On Friday 05 January 2024 21:04:59 Andy Shevchenko wrote: > On Fri, Jan 5, 2024 at 8:37 PM Andy Shevchenko > wrote: > > On Fri, Jan 5, 2024 at 6:34 PM Hans de Goede wrote: > > > On 12/24/23 23:03, Pali Rohár wrote: > > > > On Sunday 24 December 2023 22:36:21 Hans de Goede wrote: > > ... > > > > But AFAIK / AFAICT there are no actual userspace consumers of > > > /dev/freefall so removing it should not be an issue. > > > > IIRC/AFAIK there is at least one (simple) computer game using it as a joystick. > > Okay, I can't google for it and now I realised that it was my x60s, > which has no freefall, but another interface to it. In any case the > side effect of that googling is this (maybe more, I just took this one > as example): > https://github.com/linux-thinkpad/hdapsd/blob/master/README.md > > So, dropping it will break at least this tool. > > -- > With Best Regards, > Andy Shevchenko Yes, this is that correct one. I forget the name of this daemon. Just to note /dev/freefall does not provide axes state, it just send signal to process when interrupt is triggered. Process than park disk heads. Axes state are/were exported throw /dev/js* interface and those games uses just js interface. I remember Tux Racer. Interrupt on HP and Dell is triggered only when laptop fall is detected, so games did not used it (hopefully!)