From: Jon Dufresne <jon.dufresne@infinitevideocorporation.com>
To: video4linux-list@redhat.com
Subject: Writing first v4l2 driver
Date: Thu, 05 Jun 2008 10:26:17 -0400 [thread overview]
Message-ID: <1212675977.16563.24.camel@localhost.localdomain> (raw)
Hi,
I'm in the process of writing my first v4l2 linux driver. I have written
drivers in the past but this is my first time with a video device. I
have read as much documentation as I could get my hands on.
My device is a pci capture device and I am trying to use streaming
mmaped buffers. Right now I am trying to integrate the video-buf helper
functions to do the actual frame grabbing. I am quite confused as how
this all fits together.
Is there a good guide on using video-buf for video dma transfer? I did
quite a few google searches but I didn't find anything.
What is the simplest example of a capture device using video-buf for a
streaming device in the source tree to use as an example? I've looked at
a few, but I want to look at the simplest one.
Thanks for any help,
Jon
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next reply other threads:[~2008-06-05 14:26 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-06-05 14:26 Jon Dufresne [this message]
2008-06-05 21:07 ` Writing first v4l2 driver Mauro Carvalho Chehab
2008-06-06 14:29 ` Jon Dufresne
2008-06-06 15:30 ` Mauro Carvalho Chehab
2008-06-19 13:51 ` Jon Dufresne
[not found] <20080605160010.BB443619D1A@hormel.redhat.com>
2008-06-05 22:49 ` Fritz Katz
-- strict thread matches above, loose matches on Subject: below --
2008-06-09 9:00 Ramatou sori
2008-06-09 16:20 Ramatou sori
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