public inbox for linux-media@vger.kernel.org
 help / color / mirror / Atom feed
From: "Pádraig Brady" <P@draigBrady.com>
To: ian@pickworth.me.uk
Cc: Linux and Kernel Video <video4linux-list@redhat.com>
Subject: Re: How to force the device assignment with V4l V2.0?
Date: Fri, 17 Oct 2008 15:00:21 +0100	[thread overview]
Message-ID: <48F89A75.1000100@draigBrady.com> (raw)
In-Reply-To: <48F895F9.5010205@pickworth.me.uk>

Ian Pickworth wrote:
> I have two devices - a CX88 based Hauppauge TV PCI card, and a USB
> webcam. In the "old" style drivers, I could force the loading of the two
> modules (cx8800 and gspca) in a set sequence, using blacklist and
> modules.autoload. This is enough to ensure that cx88 gets /dev/video0,
> and the usb webcam gets /dev/video1.

I use udev rules to give persistent names.

Here is my /etc/udev/rules.d/video.rules file,
which creates /dev/webcam and /dev/tvtuner as appropriate.

KERNEL=="video*" SYSFS{name}=="USB2.0 Camera", NAME="video%n", SYMLINK+="webcam"
KERNEL=="video*" SYSFS{name}=="em28xx*", NAME="video%n", SYMLINK+="tvtuner"

To find distinguishing attributes to match on use:

echo /sys/class/video4linux/video* | xargs -n1 udevinfo -a -p

--
video4linux-list mailing list
Unsubscribe mailto:video4linux-list-request@redhat.com?subject=unsubscribe
https://www.redhat.com/mailman/listinfo/video4linux-list

  reply	other threads:[~2008-10-17 14:00 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-10-17 13:41 How to force the device assignment with V4l V2.0? Ian Pickworth
2008-10-17 14:00 ` Pádraig Brady [this message]
2008-10-17 14:09   ` Ian Pickworth
2008-10-17 15:51     ` Ian Pickworth
2008-10-18  4:56 ` Brandon Philips

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=48F89A75.1000100@draigBrady.com \
    --to=p@draigbrady.com \
    --cc=ian@pickworth.me.uk \
    --cc=video4linux-list@redhat.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox