mpc / linux kernel - user space

Wolfgang Denk wd at
Fri Nov 28 19:14:30 EST 2003

In message <006801c3b571$408bc6e0$c314a8c0 at cm> you wrote:
> Write an ioctl method in your module. And provide provision in ioctl to take
> a function pointer & store it.

What a bogus advice.

You CANNOT call user space code from kernel  context.  [And  actually
you don't want to.]

Best regards,

Wolfgang Denk

Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-4596-87  Fax: (+49)-8142-4596-88  Email: wd at
Human beings were created by water to transport it uphill.

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