/commits/Hans-Verkuil/Proposal-for-a-v4l2_ctrl_new_std_compound-function/20190913-222917
base: git://linuxtv.org/media_tree.git master
reproduce: make htmldocs
If you fix the issue, kindly add following tag
Reported-by: kbuild test robot
All warnings (new ones prefixed by >>):
Warnin
Hi Ricardo,
As per our irc discussion, here is a proposal how I think it can be done.
The core problem is that for compound types we want to provide a default
value that can be used in std_init_compound() without having to provide
our own type ops. The new v4l2_ctrl_new_std_compound would pass a
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committable item but it is not implemented
>> yet. A committable item is an item
>> that can be in one of two parent folders called: live and pending. The
>> idea is to create and modify the item
>> in the pending directory and then to move the item through a rename to
&g
in the pending directory and then to move the item through a rename to
> the live directory where
> it can't be modified. This seems to be a nice feature for vimc, but as
> it is not available yet the
> proposal below won't be based on this.
>
> * Groups can be dynamically
y the item
in the pending directory and then to move the item through a rename to
the live directory where
it can't be modified. This seems to be a nice feature for vimc, but as
it is not available yet the
proposal below won't be based on this.
* Groups can be dynamically created/des
he pending directory and then to move the item through a rename to
the live directory where
it can't be modified. This seems to be a nice feature for vimc, but as
it is not available yet the
proposal below won't be based on this.
* Groups can be dynamically created/destroyed by the drive
On 04/12/2016 06:42 PM, Javier Martinez Canillas wrote:
> Hello,
>
> This is a second version of an RFC patch series that adds MC input connector
> support to the tvp5150 driver. The first RFC version was [0].
>
> The patches are RFC because a previous version was merged and later reverted
> sinc
On 04/22/2016 10:23 AM, Jean-Michel Hautbois wrote:
> Hi Hans,
>
> 2016-04-22 10:08 GMT+02:00 Hans Verkuil :
>> Hi all,
>>
>> I have always been unhappy with the fact that it is so hard to tell whether
>> the USERPTR and/or DMABUF modes are available with Streaming I/O. QUERYCAP
>> only tells you
Hi Hans,
2016-04-22 10:08 GMT+02:00 Hans Verkuil :
> Hi all,
>
> I have always been unhappy with the fact that it is so hard to tell whether
> the USERPTR and/or DMABUF modes are available with Streaming I/O. QUERYCAP
> only tells you if Streaming I/O is available, but not in which flavors.
>
> So
Hi all,
I have always been unhappy with the fact that it is so hard to tell whether
the USERPTR and/or DMABUF modes are available with Streaming I/O. QUERYCAP
only tells you if Streaming I/O is available, but not in which flavors.
So I propose the following:
#define V4L2_CAP_STREAMING_MMAP V4L2_
Hello,
This is a second version of an RFC patch series that adds MC input connector
support to the tvp5150 driver. The first RFC version was [0].
The patches are RFC because a previous version was merged and later reverted
since the approach was found to be inadequate. So I preferred to post this
Hello,
On 03/09/2016 04:09 PM, Javier Martinez Canillas wrote:
>
> I was waiting for the MC input connector support discussion to settle before
> attempting to propose another patch series for the tvp5150 video decoder but
> IIUC you are going to continue the discussion at ELC so I'm posting a se
Hello,
I was waiting for the MC input connector support discussion to settle before
attempting to propose another patch series for the tvp5150 video decoder but
IIUC you are going to continue the discussion at ELC so I'm posting a series
that I believe is aligned with the latest conversations.
Th
Added Hans, who's working a lot on the HDMI transmitter drivers (including
audio support) as well as the media list to Cc.
On 10/07/2015 10:19 AM, Arnaud Pouliquen wrote:
>
>
>>> My approach is the reverse: DRM driver does not need to know anything
>>> about audio side. As ALSA is the client of
Hi
On Thu, Aug 20, 2015 at 8:41 PM, Laurent Pinchart
wrote:
>
> Hi Mauro,
>
> On Thursday 20 August 2015 00:13:43 Mauro Carvalho Chehab wrote:
> > Em Thu, 20 Aug 2015 02:33:15 +0300 Laurent Pinchart escreveu:
> > > On Tuesday 18 August 2015 07:06:36 Mauro Carvalho Chehab wrote:
> > >> Em Tue, 18
Hi Mauro,
On Thursday 20 August 2015 00:13:43 Mauro Carvalho Chehab wrote:
> Em Thu, 20 Aug 2015 02:33:15 +0300 Laurent Pinchart escreveu:
> > On Tuesday 18 August 2015 07:06:36 Mauro Carvalho Chehab wrote:
> >> Em Tue, 18 Aug 2015 09:35:14 +0300 Laurent Pinchart escreveu:
> >>> On Friday 14 Augus
D_T_GROUP),
>
> Let's see about that when the userspace API will be agreed on.
Sure.
>
> > that could be used, for example, to represent a project ARA hardware module,
> > it would be easier to remove an entire group by doing something like:
> >
> > rm -r
RA hardware module,
> it would be easier to remove an entire group by doing something like:
>
> rm -rf /configfs/vimc/vimc1/obj_group_1
[snip]
> >> I misunderstood your original proposal, I thought the name of the
> >> link_to_raw_capture_0 directory was interpret
t;> > mkdir /configfs/vimc/sensor_a
> > >>>>>>>
> > >>>>>>> The attribute files will be created by the driver through configfs:
> > >>>>>>> > ls /configfs/vimc/sensor_a
> &g
appear to the /dev/media0 and what this
> >>>>>>> node do (debayer, scaler, capture, input, generic)
> >>>>>>>
> >>>>>>> > echo -n "Sensor A" > /configfs/vimc/sensor_a/name
> >>>>&
e called "direction"
>>>>>>>
>>>>>>> will be automatically created in the process, for example:
>>>>>>> > mkdir /configfs/vimc/sensor_a/pad_0
>>>>>>> > ls /configfs/vimc/sensor_a/pad_0
&
Hello,
On Tuesday 11 August 2015 17:07:04 Helen Fornazier wrote:
> On Tue, Aug 11, 2015 at 6:36 AM, Mauro Carvalho Chehab wrote:
> > Hans Verkuil escreveu:
> >> On 08/10/15 19:21, Helen Fornazier wrote:
> >>> On Mon, Aug 10, 2015 at 10:11 AM, Hans Verkuil wrote:
> On 08/08/2015 03:55 AM, Hel
Hello,
On Tuesday 11 August 2015 12:34:46 Hans Verkuil wrote:
> On 08/11/15 11:36, Mauro Carvalho Chehab wrote:
> > Em Tue, 11 Aug 2015 11:28:25 +0200 Hans Verkuil escreveu:
> >> On 08/10/15 19:21, Helen Fornazier wrote:
> >>> On Mon, Aug 10, 2015 at 10:11 AM, Hans Verkuil wrote:
> On 08/08/2
Hello, thank you for your feedback
On Tue, Aug 11, 2015 at 6:36 AM, Mauro Carvalho Chehab
wrote:
> Em Tue, 11 Aug 2015 11:28:25 +0200
> Hans Verkuil escreveu:
>
>> Hi Helen,
>>
>> On 08/10/15 19:21, Helen Fornazier wrote:
>> > Hi, thanks for your reviews
>> >
>> > On Mon, Aug 10, 2015 at 10:11 A
Em Tue, 11 Aug 2015 12:34:46 +0200
Hans Verkuil escreveu:
> On 08/11/15 11:36, Mauro Carvalho Chehab wrote:
> > Em Tue, 11 Aug 2015 11:28:25 +0200
> > Hans Verkuil escreveu:
> >
> >> Hi Helen,
> >>
> >> On 08/10/15 19:21, Helen Fornazier wrote:
> >>> Hi, thanks for your reviews
> >>>
> >>> On M
On 08/11/15 11:36, Mauro Carvalho Chehab wrote:
> Em Tue, 11 Aug 2015 11:28:25 +0200
> Hans Verkuil escreveu:
>
>> Hi Helen,
>>
>> On 08/10/15 19:21, Helen Fornazier wrote:
>>> Hi, thanks for your reviews
>>>
>>> On Mon, Aug 10, 2015 at 10:11 AM, Hans Verkuil wrote:
Hi Helen!
On 0
Em Tue, 11 Aug 2015 11:28:25 +0200
Hans Verkuil escreveu:
> Hi Helen,
>
> On 08/10/15 19:21, Helen Fornazier wrote:
> > Hi, thanks for your reviews
> >
> > On Mon, Aug 10, 2015 at 10:11 AM, Hans Verkuil wrote:
> >> Hi Helen!
> >>
> >> On 08/08/2015 03:55 AM, Helen Fornazier wrote:
> >>> Hi!
>
Hi Helen,
On 08/10/15 19:21, Helen Fornazier wrote:
> Hi, thanks for your reviews
>
> On Mon, Aug 10, 2015 at 10:11 AM, Hans Verkuil wrote:
>> Hi Helen!
>>
>> On 08/08/2015 03:55 AM, Helen Fornazier wrote:
>>> Hi!
>>>
>>> I've made a first sketch about the API of the vimc driver (virtual
>>> med
Hi, thanks for your reviews
On Mon, Aug 10, 2015 at 10:11 AM, Hans Verkuil wrote:
> Hi Helen!
>
> On 08/08/2015 03:55 AM, Helen Fornazier wrote:
>> Hi!
>>
>> I've made a first sketch about the API of the vimc driver (virtual
>> media controller) to configure the topology through user space.
>> As
Hi Helen!
On 08/08/2015 03:55 AM, Helen Fornazier wrote:
> Hi!
>
> I've made a first sketch about the API of the vimc driver (virtual
> media controller) to configure the topology through user space.
> As first suggested by Laurent Pinchart, it is based on configfs.
>
> I would like to know you
Em Fri, 07 Aug 2015 22:55:28 -0300
Helen Fornazier escreveu:
> Hi!
>
> I've made a first sketch about the API of the vimc driver (virtual
> media controller) to configure the topology through user space.
> As first suggested by Laurent Pinchart, it is based on configfs.
Yeah, configfs seems a g
Hi!
I've made a first sketch about the API of the vimc driver (virtual
media controller) to configure the topology through user space.
As first suggested by Laurent Pinchart, it is based on configfs.
I would like to know you opinion about it, if you have any suggestion
to improve it, otherwise I'
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ALSA - which is not acceptable for maintaining lipsync, let
alone maintaining the exact relationship between audio samples and
video that SDI provides.
Some other issues are mentioned here: https://wiki.videolan.org/SDI_API/
The wiki page has a very loose proposal for an API, though perhaps the
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With RF signal input now clearly reported at , antenna switch problem
is a good assumption.
However, I don't have the right skills to "sniff" and imagine which file
should be modified and how.
All I can do is recompiling git files and test.
If a list a "GPIO" values was available somewhere
On 04/09/2013 05:46 PM, Diorser wrote:
Hello,
Please find below some news for A918R
[details @
http://www.linuxtv.org/wiki/index.php/AVerMedia_AVerTV_HD_Express_A918R ]
* the patch proposed to automatically load the right modules for A918R
card is not yet available
=> http://www.mail-archive.co
Hello,
Please find below some news for A918R
[details @
http://www.linuxtv.org/wiki/index.php/AVerMedia_AVerTV_HD_Express_A918R ]
* the patch proposed to automatically load the right modules for A918R
card is not yet available
=> http://www.mail-archive.com/linux-media@vger.kernel.org/msg5
bugging, I can try co
compile a specific kernel with CONFIG_DEBUG_KERNEL=y option to see if I
can grab something interesting.
Finally, it seems that fresh implementation of TDA18218 needs a bit more
investigation checked on more devices.
BTW, is the A918R patch proposal accepted to be taken into
co
le a specific kernel with CONFIG_DEBUG_KERNEL=y option to see if I
can grab something interesting.
Finally, it seems that fresh implementation of TDA18218 needs a bit more
investigation checked on more devices.
BTW, is the A918R patch proposal accepted to be taken into consideration,
or do I have
Just to compare, this is the same tzap test made on same channel with a
AverTV 007 (saa7134) on a another PC, with same antenna.
It works perfectly.
tzap -r TEST
using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0'
reading channels from file '~/.tzap/channels.conf'
tuning to 58616
On 01/02/2013 02:12 AM, Diorser wrote:
Does it show 100% even antenna is unplugged ?
It seems in fact that signal indicator is not reliable.
I have to sometimes reset dvb with:
for I in dvb_usb_af9035 af9033 tda18218 dvb_usb_v2 dvb_core rc_core; do
rmmod $I; done
modprobe dvb-usb-af9035
The a
Does it show 100% even antenna is unplugged ?
It seems in fact that signal indicator is not reliable.
I have to sometimes reset dvb with:
for I in dvb_usb_af9035 af9033 tda18218 dvb_usb_v2 dvb_core rc_core; do
rmmod $I; done
modprobe dvb-usb-af9035
The antenna signal input is fine, this is
On 01/02/2013 01:09 AM, Diorser wrote:
Thanks for your so fast reply.
Unfortunately, scanning output is always empty with 100% signal
strength (external antenna)
I also use a AverTV super_007 with the same external antenna on a
another PC with Kaffeine =Signal = 100%.
Does it show 100% even an
Thanks for your so fast reply.
Unfortunately, scanning output is always empty with 100% signal strength
(external antenna)
I also use a AverTV super_007 with the same external antenna on a another
PC with Kaffeine =Signal = 100%.
I also tried different dvb-usb-af9035-02.fw firmware with d
On 01/01/2013 11:40 PM, Diorser wrote:
Hi all,
After struggling some days trying to wake up a AVerTV_HD_Express_A918R
DVB-T card, I am stuck with a DMX_SET_PES_FILTER error reported by
dvbsnoop, I cannot solve (beyond my skills).
This card is based on Afatech AF9035 + AF9033 + NXP TDA18218HN, a
Hi all,
After struggling some days trying to wake up a AVerTV_HD_Express_A918R
DVB-T card, I am stuck with a DMX_SET_PES_FILTER error reported by
dvbsnoop, I cannot solve (beyond my skills).
This card is based on Afatech AF9035 + AF9033 + NXP TDA18218HN, and then
very similar to AVerTV_Vol
ng List (linux-media@vger.kernel.org)
> > Subject: Re: Proposal for the addition of a binary V4L2 control type
> >
> > On Fri October 12 2012 00:41:37 Alain VOLMAT wrote:
> > > Hi Laurent,
> > >
> > > > -Original Message-
> > > > From: La
Hi Hans
> -Original Message-
> From: Hans Verkuil [mailto:hverk...@xs4all.nl]
> Sent: Friday, October 12, 2012 8:21 AM
> To: Alain VOLMAT
> Cc: Laurent Pinchart; Linux Media Mailing List (linux-media@vger.kernel.org)
> Subject: Re: Proposal for the addition of a binary
ng List (linux-media@vger.kernel.org)
> > Subject: Re: Proposal for the addition of a binary V4L2 control type
> >
> > Hi Alain,
> >
> > On Thursday 11 October 2012 22:50:29 Alain VOLMAT wrote:
> > > Hi guys,
> > >
> > > In the context of support
this is done in an atomic way back at the driver level.
I agree with you, atomic setting of parameters will be a problem. That's a
problem I've already thought about in the past, and we've largely been able to
ignore it so far. It could even get worse: I don't know ho
Hi Laurent,
> -Original Message-
> From: Laurent Pinchart [mailto:laurent.pinch...@ideasonboard.com]
> Sent: vendredi 12 octobre 2012 00:22
> To: Alain VOLMAT
> Cc: Linux Media Mailing List (linux-media@vger.kernel.org)
> Subject: Re: Proposal for the addition of a b
Hi Alain,
On Thursday 11 October 2012 22:50:29 Alain VOLMAT wrote:
> Hi guys,
>
> In the context of supporting the control of our HDMI-TX via V4L2 in our
> SetTopBox, we are facing interface issue with V4L2 when trying to set some
> information from the application into the H/W.
>
> As an exampl
Hi guys,
In the context of supporting the control of our HDMI-TX via V4L2 in our
SetTopBox, we are facing interface issue with V4L2 when trying to set some
information from the application into the H/W.
As an example, in the HDCP context, an application controlling the HDMI-TX have
the possibi
On Wed 30 May 2012 13:13:27 Martin Bugge (marbugge) wrote:
> Hi Soby
>
> On 05/27/2012 07:30 PM, Soby Mathew wrote:
> > Martin Bugge (marbugge cisco.com> writes:
> >
> >>
> >> This is a preliminary proposal for an extension to the v4l2 api.
> &
Hi Soby
On 05/27/2012 07:30 PM, Soby Mathew wrote:
Martin Bugge (marbugge cisco.com> writes:
This is a preliminary proposal for an extension to the v4l2 api.
To be discussed at the V4L2 'brainstorming' meeting in Warsaw, March 2011
Purpose: Provide basic controls for HDMI an
Martin Bugge (marbugge cisco.com> writes:
>
>
> This is a preliminary proposal for an extension to the v4l2 api.
> To be discussed at the V4L2 'brainstorming' meeting in Warsaw, March 2011
>
> Purpose: Provide basic controls for HDMI and DVI devices.
>
On Mon May 14 2012 21:11:57 Hans Verkuil wrote:
> Hi all,
>
> These two patches deprecate the ISA video capture pms driver and the three
> parallel port webcam drivers bw-qcam, c-qcam and w9966.
>
> Nobody has hardware for the three parallel port webcams anymore (and we really
> tried to get hold
Hi all,
These two patches deprecate the ISA video capture pms driver and the three
parallel port webcam drivers bw-qcam, c-qcam and w9966.
Nobody has hardware for the three parallel port webcams anymore (and we really
tried to get hold of some), and my ISA pms board also no longer works (I suspec
ain, it might not. Or only if you set a flag or something.
My personal view (but not everyone agreed at the time) is that we just need a
simple API to send/receive CEC packets and do everything else in userspace.
It would be nice if we have a standard library for that that everyone can use,
though.
Reg
me because it means we have to know about the CEC protocol itself.
I fear that if we start doing this with the CEC UI codes, we end-up doing the
same for the system-related messages (Power, standby etc ...) and this is also
to be avoided.
>
> Best Regards,
> Murali
> From: Florian
Yes, the library to talk to the device is opensource, the hardware, not
so much. :)
On 17-04-12 15:31, Anssi Hannula wrote:
12.04.2012 23:36, Oliver Schinagl kirjoitti:
Since a lot of video cards dont' support CEC at all (not even
connected), don't have hdmi, but work perfectly fine with dvi->
12.04.2012 23:36, Oliver Schinagl kirjoitti:
> Since a lot of video cards dont' support CEC at all (not even
> connected), don't have hdmi, but work perfectly fine with dvi->hdmi
> adapters, CEC can be implemented in many other ways (think media centers)
>
> One such exammple is using USB/Arduino
anything.
On 04/12/12 17:24, Florian Fainelli wrote:
Hi Hans, Martin,
Sorry to jump in so late in the HDMI-CEC discussion, here are some
comments from my perspective on your proposal:
- the HDMI-CEC implementation deserves its own bus and class of devices
because by definition it is a ph
r end, utilizing only the CEC pins.
>
> This would make it more something like LIRC if anything.
>
> On 04/12/12 17:24, Florian Fainelli wrote:
> > Hi Hans, Martin,
> >
> > Sorry to jump in so late in the HDMI-CEC discussion, here are some
> > comments from my
/12 17:24, Florian Fainelli wrote:
Hi Hans, Martin,
Sorry to jump in so late in the HDMI-CEC discussion, here are some
comments from my perspective on your proposal:
- the HDMI-CEC implementation deserves its own bus and class of devices
because by definition it is a physical bus, which is
Hi Hans, Martin,
Sorry to jump in so late in the HDMI-CEC discussion, here are some
comments from my perspective on your proposal:
- the HDMI-CEC implementation deserves its own bus and class of devices
because by definition it is a physical bus, which is even electrically
independant from
Hi Koen,
On Thursday 16 February 2012 23:46:51 Beel, Koen wrote:
> Hi Laurent,
>
> Would it be possible to give us your number on which you can be reached next
> Monday? I prefer to init the call from our side as we will join the call
> with two people and we will be in a meeting room... (so not
On Sun, Nov 20, 2011 at 08:24:29AM +0100, Jean-Francois Moine wrote:
>
> Hi Ezequiel,
>
> It is not a minor patch, but maybe you don't know about object
> programming.
>
> As it is defined, a gspca device _is_ a video device, as a gspca
> subdriver is a gspca device, and as a video device is a d
On Sat, 19 Nov 2011 15:59:50 -0300
Ezequiel wrote:
> Hi Jef,
>
> I just sent a patch to linux-media for this little issue.
>
> I realize it is only a very minor patch,
> so I am not sure If I am helping or just annoying the developers ;)
>
> Anyway, if you could check the patch I would appre
On Thu, Nov 17, 2011 at 11:07:16AM +0100, Jean-Francois Moine wrote:
> On Wed, 16 Nov 2011 15:19:04 -0300
> Ezequiel Garc??a wrote:
>
> > In 'media/video/gspca/gspca.c' I really hated this cast (maybe because
> > I am too dumb to understand it):
> >
> > gspca_dev = (struct gspca_dev *) video_d
On Thu, Nov 17, 2011 at 11:07:16AM +0100, Jean-Francois Moine wrote:
> On Wed, 16 Nov 2011 15:19:04 -0300
> Ezequiel Garc??a wrote:
>
> > In 'media/video/gspca/gspca.c' I really hated this cast (maybe because
> > I am too dumb to understand it):
> >
> > gspca_dev = (struct gspca_dev *) video_d
On Wed, 16 Nov 2011 15:19:04 -0300
Ezequiel García wrote:
> In 'media/video/gspca/gspca.c' I really hated this cast (maybe because
> I am too dumb to understand it):
>
> gspca_dev = (struct gspca_dev *) video_devdata(file);
>
> wich is only legal because a struct video_device is the first mem
Hi folks,
In 'media/video/gspca/gspca.c' I really hated this cast (maybe because
I am too dumb to understand it):
gspca_dev = (struct gspca_dev *) video_devdata(file);
wich is only legal because a struct video_device is the first member
of gspca_dev. IMHO, this is 'unnecesary obfuscation'.
The
figuring formats (pixel format, frame size, crop rectangle,
composition rectangle, ...) on those entities
> > To glue them together I think you'd need to support the use of GEM
> > objects (maybe extended) in V4L. That may actually make life cleaner and
> > simpler in some respect
Hi Rob,
(CC'ing linux-media, as I believe this is very on-topic)
On Sunday 18 September 2011 18:14:26 Rob Clark wrote:
> On Sat, Sep 17, 2011 at 6:12 PM, Laurent Pinchart wrote:
> > On Thursday 15 September 2011 20:39:21 Florian Tobias Schandinat wrote:
> >> On 09/15/2011 05:52 PM, Alex Deucher w
what might be a better option is this: for each event a filehandle
>> >>> subscribes to there is only one internal v4l2_kevent allocated.
>> >>>
>> >>> This struct is either marked empty (no event was raised) or contains the
>> >>> l
;>> This struct is either marked empty (no event was raised) or contains the
> >>> latest state of this event. When the event is dequeued by the application
> >>> the struct is marked empty again.
> >>>
> >>> So you never get duplicate events
queued by the application
>> > the struct is marked empty again.
>> >
>> > So you never get duplicate events, instead, if a 'duplicate' event is
>> > raised
>> > it will just overwrite the 'old' event and move it to the end of the list
scribes to there is only one internal v4l2_kevent allocated.
>>>
>>> This struct is either marked empty (no event was raised) or contains the
>>> latest state of this event. When the event is dequeued by the application
>>> the struct is marked empty again.
>&g
e of this event. When the event is dequeued by the application
> > the struct is marked empty again.
> >
> > So you never get duplicate events, instead, if a 'duplicate' event is raised
> > it will just overwrite the 'old' event and move it to the end o
pty (no event was raised) or contains the
> > latest state of this event. When the event is dequeued by the application
> > the struct is marked empty again.
> >
> > So you never get duplicate events, instead, if a 'duplicate' event is
> > raised it will just ove
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