From mboxrd@z Thu Jan  1 00:00:00 1970
From: Kay Sievers <kay.sievers@vrfy.org>
Date: Wed, 21 Jan 2004 19:36:39 +0000
Subject: Re: udev rule for usb printer
Message-Id: <20040121193639.GA31628@vrfy.org>
List-Id: <linux-hotplug.vger.kernel.org>
References: <200401211924.08672.bobb@absamail.co.za>
In-Reply-To: <200401211924.08672.bobb@absamail.co.za>
MIME-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: 7bit
To: linux-hotplug@vger.kernel.org

On Wed, Jan 21, 2004 at 07:24:08PM +0200, Bob Barry wrote:
> I have a Lexmark Z52 usb printer.  To get it going I put the following into /etc/udev/udev.rules:
>    # USB Lexmark Z52 printer to be called lp_Z52
>    BUS="usb", SYSFS_product="Lexmark Z52", NAME="lp_Z52", SYMLINK="usblp0"
> But hotplug/udev ignored it and started:
>    crw-rw----    1 root     lp       180,   0 2004-01-08 17:46 /dev/lp0
> with no symlink.
> 
> I got the "product" label from:
>    asterix:udev> cd /sys
>    asterix:sys> find . -type f | xargs grep Z52 2>/dev/null
>    ./devices/pci0000:00/0000:00:02.0/usb1/1-1/product:Lexmark Z52
> 
> To be very sure of what was in the string:
>    asterix:sys> s=$(find . -type f | xargs grep Z52 2>/dev/null); s=${s}"XX"; echo $s
>    ./devices/pci0000:00/0000:00:02.0/usb1/1-1/product:Lexmark Z52XX
>    asterix:sys> echo ${s##*:}                                                      
>    Lexmark Z52XX
>    asterix:sys> echo ${s##*:} | od -t x1
>    0000000 4c 65 78 6d 61 72 6b 20 5a 35 32 58 58 0a
>    0000016
>    asterix:sys> 
> 
> Should my rule with SYSFS_product have worked?
> Is my syntax wrong?
> Where am I misunderstanding?
> Newbies like me could use heaps more rule examples.

You may try the extras/udevinfo/udevinfo program.
This is quite new, so I want to know if this can help.
Change into the directory and type "make me" to build it.

Then execute "./udevinfo /sys/class/video4linux/video0" and it will print
all possible attributes in the key format for a rule.

looking at class device '/sys/class/video4linux/video0':
  SYSFS_dev="81:0"
  SYSFS_name="OV511 USB Camera"
  SYSFS_custom_id="21"
  SYSFS_model="Creative Labs WebCam 3"
  SYSFS_bridge="OV511+"
  SYSFS_sensor="OV7620"
  SYSFS_brightness="97"
  SYSFS_saturation="192"
  SYSFS_contrast="86"
  SYSFS_hue="128"
  SYSFS_exposure="0"
  ...

Good luck,
Kay


-------------------------------------------------------
The SF.Net email is sponsored by EclipseCon 2004
Premiere Conference on Open Tools Development and Integration
See the breadth of Eclipse activity. February 3-5 in Anaheim, CA.
http://www.eclipsecon.org/osdn
_______________________________________________
Linux-hotplug-devel mailing list  http://linux-hotplug.sourceforge.net
Linux-hotplug-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/linux-hotplug-devel