linux-kernel - Re: [PATCH v9 0/2] [media] atmel-isc: add driver for Atmel ISC

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]

Message-ID: <c422fc89-8184-5416-4574-77d6234aa4be@microchip.com>
Date:	Mon, 15 Aug 2016 14:09:21 +0800
From:	"Wu, Songjun" <Songjun.Wu@...rochip.com>
To:	Hans Verkuil <hverkuil@...all.nl>, <nicolas.ferre@...el.com>,
	<robh@...nel.org>
CC:	<laurent.pinchart@...asonboard.com>,
	<linux-arm-kernel@...ts.infradead.org>,
	<linux-media@...r.kernel.org>,
	Mauro Carvalho Chehab <mchehab@...nel.org>,
	Arnd Bergmann <arnd@...db.de>,
	Niklas SÃ¶derlund 
	<niklas.soderlund+renesas@...natech.se>,
	Benoit Parrot <bparrot@...com>, <linux-kernel@...r.kernel.org>,
	Andrew-CT Chen <andrew-ct.chen@...iatek.com>,
	Sudip Mukherjee <sudipm.mukherjee@...il.com>,
	<devicetree@...r.kernel.org>, Rob Herring <robh+dt@...nel.org>,
	Kamil Debski <kamil@...as.org>,
	Tiffany Lin <tiffany.lin@...iatek.com>,
	Geert Uytterhoeven <geert@...ux-m68k.org>,
	Mark Rutland <mark.rutland@....com>,
	Mikhail Ulyanov <mikhail.ulyanov@...entembedded.com>,
	Richard Röjfors <richard@...finpack.se>,
	Hans Verkuil <hans.verkuil@...co.com>,
	Laurent Pinchart <laurent.pinchart+renesas@...asonboard.com>,
	Simon Horman <horms+renesas@...ge.net.au>
Subject: Re: [PATCH v9 0/2] [media] atmel-isc: add driver for Atmel ISC



On 8/12/2016 15:32, Hans Verkuil wrote:
> One quick question:
>
> On 08/11/2016 09:06 AM, Songjun Wu wrote:
>> The Image Sensor Controller driver includes two parts.
>> 1) Driver code to implement the ISC function.
>> 2) Device tree binding documentation, it describes how
>>    to add the ISC in device tree.
>>
>> Test result with v4l-utils.
>> # v4l2-compliance -f
>> v4l2-compliance SHA   : not available
>>
>> Driver Info:
>>         Driver name   : atmel_isc
>>         Card type     : Atmel Image Sensor Controller
>>         Bus info      : platform:atmel_isc f0008000.isc
>>         Driver version: 4.7.0
>>         Capabilities  : 0x84200001
>>                 Video Capture
>>                 Streaming
>>                 Extended Pix Format
>>                 Device Capabilities
>>         Device Caps   : 0x04200001
>>                 Video Capture
>>                 Streaming
>>                 Extended Pix Format
>>
>> Compliance test for device /dev/video0 (not using libv4l2):
>>
>> Required ioctls:
>>         test VIDIOC_QUERYCAP: OK
>>
>> Allow for multiple opens:
>>         test second video open: OK
>>         test VIDIOC_QUERYCAP: OK
>>         test VIDIOC_G/S_PRIORITY: OK
>>         test for unlimited opens: OK
>>
>> Debug ioctls:
>>         test VIDIOC_DBG_G/S_REGISTER: OK (Not Supported)
>>         test VIDIOC_LOG_STATUS: OK (Not Supported)
>>
>> Input ioctls:
>>         test VIDIOC_G/S_TUNER/ENUM_FREQ_BANDS: OK (Not Supported)
>>         test VIDIOC_G/S_FREQUENCY: OK (Not Supported)
>>         test VIDIOC_S_HW_FREQ_SEEK: OK (Not Supported)
>>         test VIDIOC_ENUMAUDIO: OK (Not Supported)
>>         test VIDIOC_G/S/ENUMINPUT: OK
>>         test VIDIOC_G/S_AUDIO: OK (Not Supported)
>>         Inputs: 1 Audio Inputs: 0 Tuners: 0
>>
>> Output ioctls:
>>         test VIDIOC_G/S_MODULATOR: OK (Not Supported)
>>         test VIDIOC_G/S_FREQUENCY: OK (Not Supported)
>>         test VIDIOC_ENUMAUDOUT: OK (Not Supported)
>>         test VIDIOC_G/S/ENUMOUTPUT: OK (Not Supported)
>>         test VIDIOC_G/S_AUDOUT: OK (Not Supported)
>>         Outputs: 0 Audio Outputs: 0 Modulators: 0
>>
>> Input/Output configuration ioctls:
>>         test VIDIOC_ENUM/G/S/QUERY_STD: OK (Not Supported)
>>         test VIDIOC_ENUM/G/S/QUERY_DV_TIMINGS: OK (Not Supported)
>>         test VIDIOC_DV_TIMINGS_CAP: OK (Not Supported)
>>         test VIDIOC_G/S_EDID: OK (Not Supported)
>>
>> Test input 0:
>>
>>         Control ioctls:
>>                 test VIDIOC_QUERY_EXT_CTRL/QUERYMENU: OK (Not Supported)
>>                 test VIDIOC_QUERYCTRL: OK (Not Supported)
>>                 test VIDIOC_G/S_CTRL: OK (Not Supported)
>>                 test VIDIOC_G/S/TRY_EXT_CTRLS: OK (Not Supported)
>>                 test VIDIOC_(UN)SUBSCRIBE_EVENT/DQEVENT: OK (Not Supported)
>>                 test VIDIOC_G/S_JPEGCOMP: OK (Not Supported)
>>                 Standard Controls: 0 Private Controls: 0
>
> Can you confirm that the sensor subdevice you are using does not have any controls?
> I ask since that is fairly unusual, so I want to make sure that controls are really
> not supported in this setup.
>
Sorry for the late reply.
The subdevice I use supports controls, but I did not develop the v4l2 
controls in the sensor driver.
Should I add the v4l2 controls and test again?

> Regards,
>
> 	Hans
>