Read data from /dev/mouse

Movax · 09-29-2011, 11:09 AM

I'm simply (at this point) trying to read data form the mouse to verify is is working as specified by the standard protocol here: http://www.computer-engineering.org/ps2mouse/

I have a simple script to test:

Code:

while true
do
head -c 1 /dev/mouse|printf "%X\n"
done

But all I get are zeros (0). This can't be right, a simple cat /dev/mouse gives me tons of garbage. How can I dump the bytes being read in to the screen? Even better, is there a quick way to print the byte in base 2?

Thanks

anomie · 09-29-2011, 11:46 AM

Possibly. Check the od(1) manpages - might meet your needs.

Movax · 09-29-2011, 12:05 PM

This is on a very stripped down (embedded) install, I am trying not to add any more binaries to the initrd, but I'll give it a shot.

business_kid · 09-29-2011, 01:05 PM

dd if=/dev/mouse of=somewhere should get the lot in decimal or hex.

It's a bit late in the day for binary, I'm afraid; I'm overworking my brain a bit