Hi Greg,
Thanks for your reply.
On 01/03/2012 04:29 PM, Greg KH wrote:
On Tue, Jan 03, 2012 at 04:10:15PM +0000, Nuno Santos wrote:
Hi,
I'm calling usb_bulk_msg inside usbtouch_process_pkt and this is
causing the kernel to panic.
What is the kernel panic message? Perhaps that will tell you why you
can't do this :)
That's another pertinent question. After this I usually need to restart
my computer and the syslog doesn't contain the error to better
analyse... :/
Maybe someone could explain me why this happens and how can I
proceed in order to make what I need to make without having this
problem.
You can't call a sleeping function from within irq context, which is
probably what you are doing, right?
Now that you put this in those terms, it makes sense...
What are you trying to solve by calling this function at this point in
time?
From time to time I need to send a message to my device to tell him to
do something. Since right now, the only place in which I have continuous
access to device data is the data callback I decided to do that
operation there.
I think my only alternative here is to create a timer that from time to
time is called and if it is the time to make that operation, it will be
done inside the timer.
Do you have any other suggestion?
thanks,
greg k-h
Thanks
Nuno
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