Please check the major and minor number of device node which your drvier support. BRs, H. Johnny 2010/1/7 Sam Carter <sam.w.carter@xxxxxxxxx>: > 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 > -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx Please read the FAQ at http://kernelnewbies.org/FAQ