Re: 'No such device or address' when writing to device driver

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On Thu, Jan 7, 2010 at 3:31 AM, Sam Carter <sam.w.carter@xxxxxxxxx> wrote:
> 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.


Is the major/minor number of /dev/myDevice the same with major/minor
allocated in your driver ?
Can you post a pointer to your code?

thanks,
Daniel.

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