From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: ARC-Seal: i=1; a=rsa-sha256; t=1517902880; cv=none; d=google.com; s=arc-20160816; b=PnN5LRILhJCSZioZjSALqmtRLFBy/PN6jQlidvDon7kcBbAsfF8Ietx/JJQEzvdQDr y2+lbFNGzC+hw6+jqOh9LC+ZAqeJIUm5sH2XAiJiKRHtBunQwaWslqfD8ZxLKJiFnuSc RqMji4zU5usIsjvvSAWAEF239EYmiC/H6k4yBUQBjp0fCHCwp09Xr1a+ianULnAxq+i8 Jui4PsNBJ3QwTQ7vylZ1S6zLQyytVEsnMyJCYqi+6sq8OT/B3LmCkKi0V9XNJJmXZokM bk2owDQiiv7D2Ao0BcplAQeUVpThN9RpycpoFa5tPLx8FZF0toS/fRad53XVJ6/ZZ/I6 4GUA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=user-agent:in-reply-to:content-transfer-encoding :content-disposition:mime-version:references:message-id:subject:cc :to:from:date:dkim-signature:arc-authentication-results; bh=DkA8xP23dko0P6AGi3dR2//3FaAir5I3tMKjjipOLf4=; b=WkvSrlFGHYxHWG28k0zN2IJGD+bw/aGaRnXtY5VtZ6Dfsb2kayUdQzitmbthPmXn7F vha3w+L0uNv/wfOEVjIHlHNpRdP+fTYe5/6YCynzenMgY6ZgPbagmryLbnroBUc+1+fP 93ymrRGC/JyEnz1EsX+AjaDmqIB6aslv4ybiA2JcX3z4AlVpJU6McBYuxPmeknhFyxnb tuuJwR3baDDycZeDss82m1AMT/13LgcpDGgOmmCNIu6u3dtURXoXTD2BBHaGx6zFJ+xV t7htdDeP7RdJe933WxHwyVVoqApE97peneWUCfoggyWPbq6fj+9TAjUdP2nWsGhmQfZy XWUw== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@gmail.com header.s=20161025 header.b=tgBuxw1/; spf=pass (google.com: domain of aishpant@gmail.com designates 209.85.220.65 as permitted sender) smtp.mailfrom=aishpant@gmail.com; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=gmail.com Authentication-Results: mx.google.com; dkim=pass header.i=@gmail.com header.s=20161025 header.b=tgBuxw1/; spf=pass (google.com: domain of aishpant@gmail.com designates 209.85.220.65 as permitted sender) smtp.mailfrom=aishpant@gmail.com; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=gmail.com X-Google-Smtp-Source: AH8x2276YFiGThB0FTNVQVkI3F6VY2sSg8+QdgK4ZPV1/PtzCh/hQMUjlbmEt+cKuSTGOig6p/iVPw== Date: Tue, 6 Feb 2018 13:11:12 +0530 From: Aishwarya Pant To: Lee Jones , Daniel Thompson , Jingoo Han , Bartlomiej Zolnierkiewicz , dri-devel@lists.freedesktop.org, linux-fbdev@vger.kernel.org, linux-kernel@vger.kernel.org, Jonathan Corbet , Greg KH , Michael Hennerich Cc: Julia Lawall Subject: [PATCH v2 3/3] backlight: adp8860: document sysfs attributes Message-ID: <4a486ddca7b33844765f6773fd41e91f1fa9b2fb.1517902411.git.aishpant@gmail.com> References: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: User-Agent: Mutt/1.9.3 (2018-01-21) X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: =?utf-8?q?1591636530950975861?= X-GMAIL-MSGID: =?utf-8?q?1591636530950975861?= X-Mailing-List: linux-kernel@vger.kernel.org List-ID: Add documentation for sysfs interface of adp8860 series backlight devices by reading through code and git commits. Signed-off-by: Aishwarya Pant Acked-by: Michael Hennerich --- .../ABI/testing/sysfs-class-backlight-adp8860 | 54 ++++++++++++++++++++++ 1 file changed, 54 insertions(+) create mode 100644 Documentation/ABI/testing/sysfs-class-backlight-adp8860 diff --git a/Documentation/ABI/testing/sysfs-class-backlight-adp8860 b/Documentation/ABI/testing/sysfs-class-backlight-adp8860 new file mode 100644 index 000000000000..54d61c788b1b --- /dev/null +++ b/Documentation/ABI/testing/sysfs-class-backlight-adp8860 @@ -0,0 +1,54 @@ +sysfs interface for analog devices adp8860 backlight driver +----------------------------------------------------------- + +The backlight brightness control operates at three different levels for the +adp8860, adp8861 and adp8863 devices: daylight (level 1), office (level 2) and +dark (level 3). By default the brightness operates at the daylight brightness +level. + +What: /sys/class/backlight//ambient_light_level +Date: Apr, 2010 +KernelVersion: v2.6.35 +Contact: Michael Hennerich +Description: + (RO) 13-bit conversion value for the first light sensor—high + byte (Bit 12 to Bit 8). The value is updated every 80 ms (when + the light sensor is enabled). + + +What: /sys/class/backlight//ambient_light_zone +Date: Apr, 2010 +KernelVersion: v2.6.35 +Contact: Michael Hennerich +Description: + (RW) Read or write the specific level at which the backlight + operates. Value "0" enables automatic ambient light sensing, and + values "1", "2" or "3" set the control to daylight, office or + dark respectively. + + +What: /sys/class/backlight//l1_daylight_max +What: /sys/class/backlight//l2_office_max +What: /sys/class/backlight//l3_dark_max +Date: Apr, 2010 +KernelVersion: v2.6.35 +Contact: Michael Hennerich +Description: + (RW) Maximum current setting for the backlight when brightness + is at one of the three levels (daylight, office or dark). This + is an input code between 0 and 127, which is transformed to a + value between 0 mA and 30 mA using linear or non-linear + algorithms. + + +What: /sys/class/backlight//l1_daylight_dim +What: /sys/class/backlight//l2_office_dim +What: /sys/class/backlight//l3_dark_dim +Date: Apr, 2010 +KernelVersion: v2.6.35 +Contact: Michael Hennerich +Description: + (RW) Dim current setting for the backlight when brightness is at + one of the three levels (daylight, office or dark). This is an + input code between 0 and 127, which is transformed to a value + between 0 mA and 30 mA using linear or non-linear algorithms. -- 2.16.1