[ale] help with udev rule

[Todor Fassl]

All,

I want to write a udev rule to load a driver for a hardware speech 
synthesizer. Many synths have both USB and serial connectors. The linux 
screen reader always uses the serial port. But I thought I could write a 
udev rule to detect when the synth is plugged into the USB port and then 
load the driver for the serial port. So a blind person would have to 
plug the synth into both the serial and the USB ports but I don't figure 
that is a problem.  It is way easier than trying to log in without 
speech and then try to type in the modprobe command. I am hoping to 
write a whole series of these rules and then make them available for 
download.

I got a rule to work but it seems to try to load the driver several 
times. Is anybody experienced enough with udev rules to tell me if this 
is a problem and if so, how it can be fixed? Here is my rule:

ACTION=="add", SYSFS{idVendor}=="0dd0", SYSFS{idProduct}=="1002", 
RUN="/sbin/modprobe speakup_ltlk"


-- 
Todd