devctl usage

bridged with qdn.public.ddk.input
Post Reply
Mike Kadour

devctl usage

Post by Mike Kadour » Mon Nov 11, 2002 2:50 pm

I've read the other posts on this topic, reviewed source, read all the docs,
and I still cannot sort out the devctl usage with an input driver.

The task I'm attempting to accomplish is simple - I need to solicit my input
(touch) driver for data other than the pointer information it is originally
designed to provide. My first thought was to create a custom devctl
command. However, I cannot make heads-or-tails of the relationship between
the devctl "dcmd" parameter and the devctrl (input driver function) "event"
parameter. All my attempts to transmit a devctl message result in:

"ENOTTY: Inappropriate I/O control operation"

which according to devctl is:

"The dcmd argument isn't a valid command for this device."

I have used every combination of -r and -P when initiating my input driver,
and nothing has resulted in a transmitted devctl message.

Please advise on the parameter relationship between devctl and devctRl, and
on the overall use of devctl's for my task.

Much appreciated,
Mike Kadour

Post Reply

Return to “qdn.public.ddk.input”