Re: File access from Kernel Code

On Wed, Sep 18, 2002 at 02:56:04PM +0200, Guenter Gebhardt wrote:
> Is this only true for modules programmed to fit into the comedi driver, or is 
> it generally not possible for kernel code to access a file on the hard disk?

It is possible in the kernel, but unwise.  Fixed path names in the
kernel are very bad.

Comedi has relatively strict (but unwritten!) rules about what can go
in a driver.  (Don't worry, I don't expect people to read my mind,
so I fix the drivers myself.)  Code that opens a file would only be
allowed in an _attach function (since it can/will call schedule()),
and since there's an existing Comedi mechanism to transfer files to
a driver, it's not allowed.



dave...

Received on 2002-09-18Z18:04:01