An interesting problem

Here's one that's kind of interesting (to me, anyway). My Palm Treo650 creates two ttyUSB devices when I plug it in and hit the sync button. The higher numbered of the two is the one that needs to be used for syncing. (I assume that the lower numbered port represents a modem.)

How would you go about writing a udev rule to link /dev/pilot to the correct port?

There is no "generic" way to do this, due to the wide range of palm devices, and the proper connection port for them. Best thing to do is just write a rule for your device and be happy it works for you :)

Quoted 3 lines · Greg KH

There is no "generic" way to do this, due to the wide range of palm devices, and the proper connection port for them. Best thing to do is just write a rule for your device and be happy it works for you :)

But how can I write this rule? Assume that I may (or may not) have some other USB serial device plugged in, so ttyUSB1 isn't necessarily the correct port. How can I identify the "higher" port of the two that get created?

Quoted 5 lines · Ian Pilcher

Here's one that's kind of interesting (to me, anyway). My Palm Treo650 creates two ttyUSB devices when I plug it in and hit the sync button. The higher numbered of the two is the one that needs to be used for syncing. (I assume that the lower numbered port represents a modem.)

Quoted 2 lines

How would you go about writing a udev rule to link /dev/pilot to the correct port?

There is no "generic" way to do this, due to the wide range of palm devices, and the proper connection port for them. Best thing to do is just write a rule for your device and be happy it works for you :)

Quoted 9 lines · Greg KH

Quoted 7 lines · Ian Pilcher

Here's one that's kind of interesting (to me, anyway). My Palm Treo650 creates two ttyUSB devices when I plug it in and hit the sync button. The higher numbered of the two is the one that needs to be used for syncing. (I assume that the lower numbered port represents a modem.)

How would you go about writing a udev rule to link /dev/pilot to the correct port?

Quoted 3 lines

There is no "generic" way to do this, due to the wide range of palm devices, and the proper connection port for them. Best thing to do is just write a rule for your device and be happy it works for you :)

Here's the hack we've been using in Mandriva for years:
http://cvs.mandriva.com/cgi-bin/cvsweb.cgi/soft/dynamic/scripts/visor.scrip
t?rev=1.7&content-type=text/x-cvsweb-markup It's run from this rule:
KERNEL="ttyUSB[13579]*",