linux-kernel - Re: [PATCH v2 2/2] leds: add Qualcomm PM8941 WLED driver

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Fri, 13 Feb 2015 12:28:45 +0800
From:	"Ivan T. Ivanov" <iivanov@...sol.com>
To:	Stephen Boyd <sboyd@...eaurora.org>
Cc:	Bjorn Andersson <bjorn.andersson@...ymobile.com>,
	Rob Herring <robh+dt@...nel.org>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	Bryan Wu <cooloney@...il.com>,
	Richard Purdie <rpurdie@...ys.net>,
	Grant Likely <grant.likely@...aro.org>,
	Courtney Cavin <courtney.cavin@...ymobile.com>,
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-leds@...r.kernel.org, linux-arm-msm@...r.kernel.org
Subject: Re: [PATCH v2 2/2] leds: add Qualcomm PM8941 WLED driver


On Thu, 2015-02-12 at 20:07 -0800, Stephen Boyd wrote:
> On 01/29/15 04:48, Ivan T. Ivanov wrote:
> > Otherwise it looks good. Driver is loaded and device is detected
> > properly (i have added readings for type and subtype registers).
> > Do you know where I can measure result from changing brightness
> > sysfs entry. I am using 8074 dragonboard?
> 
> Does the backlight turn on? From what I can tell it controls the
> backlight, but it may be that nothings getting displayed so it won't be
> noticeable.
> 

Yes, I can not see visual changes. That is why I have asked where
I could hook the probe and measure current change or wherever.
BL_WLEDx signals go out from J2, but somehow I was unable to 
locate it on the board, will try to look harder :-)

Regards,
Ivan
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/