I use mknod in the .sh file I use to load the module. The device appears on the list under /dev however all operations to write to it fail.
Thanks, Sam
2010/1/8 chiachen <luojiazhen@xxxxxxxxx>
Dear Sam Carter,
Maybe you have not "mknod" , so the /dev/myDevice could not be found.
Sincerely yours,
chiachen
luojiazhen@xxxxxxxxx
2010-01-08
======= 2010-01-07 09:31, your message: 'No such device or address' when writing to device driver======== = = = = = = = = = = = = = = = = = = =
Hi all,
I'm trying to write a simple char driver following the 'Linux Device Drivers' book from O' Reilly. My driver appears in /proc/devices and under lsmod. I've been trying to register the device fops table so I can read/write to it, however when I try to cat some data to it in /dev/myDevice I get the error 'No such device or address'.. The device does appear on the list with ls /dev/.
Can anyone help me find the source of this problem? Thanks in advance.
Sam
