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Vidioc Reqbufs Error 12


What do you mean by cables and power issues? Mouse won't work (it's new), no help, no support and still same nonsense with power cables and power settings, x months later.Way to put a 10 year old off computing with It has a really low delay... Also on the ``VIDIOC_DQBUF`` page the ``EIO`` error code was not documented.

The USB system is not broken, but there do appear to be issues for SOME people. I am considering creating a sourceforge account and putting my kernel on there. When the driver supports more than one buffer applications can call the ioctl multiple times and thus have multiple outstanding capture requests. @@ -899,7 +899,7 @@ remaining fields are probably equivalent See v4l2_memory. __u32 reserved[2] A place holder for future extensions.


For more information see :ref:`crop`. Would hyperion automatically switch to the easycap v4l input if it detects it (assuming you set the right priority)? The :ref:`select() ` or :ref:`poll() ` functions are always available.

I have not changed my config the whole time I tested. Volunteer at the Raspberry Pi Foundation, helper at Picademy September, October, November 2014. Posts: 2156Joined: Fri Aug 05, 2011 4:30 pmLocation: Susanville CA. V4l2_memory_userptr Phil1988 commented Jan 28, 2014 I started with an completely new raspbian and tried that but: sudo /opt/hyperion/bin/hyperion-v4l2 --crop-height 1 --crop-width 10 --size-decimator 8 --frame-decimator 2 --skip-reply --signal-threshold 0.08 gives me:

poljvd commented Feb 1, 2014 Thanks for testing although I don't understand the outcome... Struct V4l2_buffer row 1 - - EWOULDBLOCK + - ``EWOULDBLOCK`` - No data to return and O_NONBLOCK was specified. - .. I should try my grabber with the Raspbian release from September when I have some time. B stock that needs to be sold.

Entities can be enumerated by or'ing the id with the ``MEDIA_ENT_ID_FLAG_NEXT`` flag. V4l2_requestbuffers Sonics Silicon Backplane ---> Multifunction device drivers ---> [*] Voltage and Current Regulator Support ---> "<*> Multimedia support --->" Graphics support ---> <*> Sound card support ---> [*] HID Devices ---> too bad that some people might miss this. He has agreed to add module to Raspbmc, but he needs your help to identify what changes you have made.

Struct V4l2_buffer

Well, it is just a thought and I am running out of hypotheses. When the ``O_NONBLOCK`` flag was given to the :ref:`open() ` function, ``VIDIOC_DQBUF`` returns -immediately with an EAGAIN error code when no buffer is available. Vidioc_querybuf The struct :ref:`v4l2_capability ` changed dramatically. Vidioc_qbuf Personally, I am also unable to run hyperion-v4l2 without this message and therefor I run on it on another PC.

Smoothing only influences the output to the leds and is not related to the video source. To enumerate all audio outputs applications shall begin at index -zero, incrementing by one until the driver returns EINVAL. +zero, incrementing by one until the driver returns ``EINVAL``. row 2 - - ENOMEM + - ``ENOMEM`` - Attempted to write more data than the internal buffer can hold. - .. diff --git a/Documentation/linux_tv/media/dvb/intro_files/dvbstb.png b/Documentation/linux_tv/media/dvb/intro_files/dvbstb.png index 9b8f372e7afd9d016854973ba705dcdfbd1bbf13..5836ea94eba4ec4fd13a83e89ef86b312cc04c02 100644 GIT binary patch delta 164 zcmeyrfpPst#tjYZ>Ez0rTi#0k+90_5H|`T~{;0q}ax=MxZ8j4=%*x{G=H|AUQBspYnXl2LO%FCVBt> diff --git a/Documentation/linux_tv/media/dvb/video_function_calls.rst b/Documentation/linux_tv/media/dvb/video_function_calls.rst index 78917bdf51ed..39eaecd8755a 100644 --- a/Documentation/linux_tv/media/dvb/video_function_calls.rst +++ b/Documentation/linux_tv/media/dvb/video_function_calls.rst Vidioc_streamon

What I want to ad is that the fushicai grabber gives by far worse colors than the STK1160 (DC60) grabber. To get the EDID data the application has to fill in the ``pad``, ``start_block``, ``blocks`` and ``edid`` fields, zero the ``reserved`` @@ -59,7 +59,7 @@ array and call :ref:`VIDIOC_G_EDID `. This might happen if O_NONBLOCK was specified and there is no more buffer space available (if @@ -320,7 +320,7 @@ RETURN VALUE - .. If the old driver indeed supports downscaling then things may run on my RPi after all.

Supports buffer management through memory mapped (mmaped) on both FBDev and V4l2. Vidioc_reqbufs I had 180X144 with 40ms Interval. The argument of clksrc is designed to achieve this function.

Video compositors are connected to four VENCs to support various output format and mode.

I can not set the colors by the hyperion app and the colors dont turn on. struct v4l2_crop crop; crop.type = V4L2_BUF_TYPE_VIDEO_OUTPUT; crop.c.left = 0; = 0; crop.c.width = 320; crop.c.height = 320; ret = ioctl(fd, VIDIOC_S_CROP, &crop); if (ret < 0) { perror("VIDIOC_S_CROP\n"); close(fd); exit(0); In the former case, the call blocks until an +errno set to ``EWOULDBLOCK``. V4l2_buf_type_video_capture I was busy with my PhD graduation last week but I have a new laptop now so I will install ubuntu on it tomorrow and then I can rebuild the pi

Plus I heard from sam nazarko's twitter that the cross-compile tools for the pi have been updated so that's another thing to think about. Supports user pointer buffer exchange for application usage on V4L2 only. Remember that the DC60 (STK1160) grabber show different values as I type "v4l2-ctl --all" On the fushicai grabber I get this which is (what i can see) the same like the Usage: struct ti81xxfb_region_params regp; if (ioctl(fd, TIFB_GET_PARAMS, ®p) < 0) { perror("TIFB_GET_PARAMS\n"); close(fd); exit(1); } TIFB_SET_PARAMS Ioctl set the current graphics features.

So your guess is not right. Posts: 302Joined: Thu Mar 15, 2012 4:09 pmLocation: Surrey, England by jamesh » Thu Oct 18, 2012 6:37 am Been very busy at work last week or two, not sure how Let me know if the above instructions work. Do other people use the exact same Arduino sketch?

The generic error codes are described at the - .. Because of the frame decimation this becomes 12.5 Hz of data to the leds. Volunteer at the Raspberry Pi Foundation, helper at Picademy September, October, November 2014. diff --git a/Documentation/linux_tv/media/v4l/vidioc-enuminput.rst b/Documentation/linux_tv/media/v4l/vidioc-enuminput.rst index 3b0577a307e9..7344777e3514 100644 --- a/Documentation/linux_tv/media/v4l/vidioc-enuminput.rst +++ b/Documentation/linux_tv/media/v4l/vidioc-enuminput.rst @@ -34,9 +34,9 @@ Description To query the attributes of a video input applications initialize the ``index`` field of struct

it continues loading without doing nothing. NOTE: If sbufsize is not set, driver sets buffer size equal to 2MB. $insmod vpss.ko sbufsize=1024K Below is the list of arguments of clksrc supports VPSS Driver Clock Source Arguments Argument frame decimator =1 : slow motion (25%) frame decimator = 1 As you can see... row 4 - - EFAULT + - ``EFAULT`` - There was a failure while copying data from/to userspace, probably caused by an invalid pointer reference. - ..

It worked. Image/Video processing( alpha blending, colorkeying, cropping ) Video Processing Subsystem Architecture Software Design Interfaces Above figure (Video Processing Subsystem Architecture) shows the major components that makes up the VPSS software sub-system The buffer is flushed. - .. Return Value¶ On success 0 is returned, on error -1 and the errno variable is set appropriately.

With smoothing at 20 Hz, your leds are updated 20 times per second no matter what the grabber settings are and you have no ambilight With smoothing at 10 Hz your Data Structure: enum ti81xxfb_mem_mode { TI81XXFB_MEM_NONTILER = 0, TI81XXFB_MEM_TILER_PAGE , TI81XXFB_MEM_TILER_8, TI81XXFB_MEM_TILER_16, TI81XXFB_MEM_TILER_32 }; struct ti81xxfb_mem_info { __u32 size; /*ti81xxfb_mem_mode*/ __u32 type; }; NOTE: Only TI81XXFB_MEM_NONTILER is supported currently. Changes 8. They are working on it. 512MB version 2.0 as WordPress ServerMotorola Lapdock with Pi2BModded Rev 1.0 with pin headers at USB ships old stock to reward its Customers for long wait!

Querying Capabilities @@ -207,7 +207,7 @@ introduction. - Applications can call the :ref:`VIDIOC_G_CROP ` ioctl to determine if the device supports capturing a subsection of the full picture ("cropping" in V4L2). Things start getting bad when using a subsequent hub and mixing protocols on it. more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed hyperion-v4l2 is taking 17% and hyperiond is taking 13%...