Re: Run hotplug scripts after device node is created?

[Kay Sievers <kay.sievers@vrfy.org>]

On Tue, Aug 23, 2005 at 08:25:05PM +0200, Stefan Schweizer wrote:
> On 8/22/05, Kay Sievers <kay.sievers@vrfy.org> wrote:
> > > currently the script is scanning all devices for a supported one .. is
> > > there some variable in a hotplug script to read out the device node?
> > 
> > Sure. DEVNAME.
> 
> thank you .. but I do not seem to be able to access DEVNAME :(
> 
> Any better idea than again guessing and sleeping?
> 
> relevant part of udev.conf:
> 
> SUBSYSTEM="usb", ACTION="add", ENV{PRODUCT}="3f0/0517*",
> RUN+="/etc/hotplug/hplj-udev"
> SUBSYSTEM="usb", ACTION="add", ENV{PRODUCT}="3f0/1317*",
> RUN+="/etc/hotplug/hplj-udev"
> SUBSYSTEM="usb", ACTION="add", ENV{PRODUCT}="3f0/2B17*",
> RUN+="/etc/hotplug/hplj-udev"
> SUBSYSTEM="usb", KERNEL="lp*", ACTION="add", NAME="usb/%k",
> SYMLINK+="usb%k", GROUP="lp"
> #BUS="usb", KERNEL="lp[0-9]*",        NAME="usb/%k", GROUP="lp"
> 
> env of the script:
> SUBSYSTEM=usb
> DEVPATH=/devices/pci0000:00/0000:00:0f.5/usb2/2-2/2-2.1/2-2.1:1.0
> PATH=/sbin:/bin:/usr/sbin:/usr/bin
> ACTION­d
> MODALIAS=usb:v03F0p1317d0120dc00dsc00dp00ic07isc01ip02
> PWD=/
> UDEVD_EVENT=1
> SHLVL=1
> HOME=/
> DEVICE=/proc/bus/usb/002/017
> INTERFACE=7/1/2
> PRODUCT?0/1317/120
> TYPE=0/0/0
> PHYSDEVBUS=usb
> SEQNUM†3
> _=/bin/env

You are catching the event for the "raw" usb device here. I don't know what
device you need to upload the firmware too, but "raw" usb devices don't
have a device node in the current kernel only an interface in /proc.
You may need to catch the event for the printer interface, not sure.

Run "udevmonitor" while connecting the printer, it will show you all
events. And "udevmonitor --env" will print the whole environment, where
you can possibly see the DEVNAME.

Good luck,
Kay


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