Keyboard is frozen on boot of 2.3.41

[David Weinehall]

On Mon, 31 Jan 2000, Guest section DW wrote:

> On Sun, Jan 30, 2000 at 02:35:43PM -0800, Linus Torvalds wrote:
> 
> > [ Tee-dee-tee-dee-tee-dee theme from "The Twilight Zone" ]
> > 
> > Basically, the mouse open routine does:
> > 
> >         kbd_write_command_w(KBD_CCMD_MOUSE_ENABLE);     /* Enable the
> >                                                            auxiliary port on
> >                                                            controller. */
> >         aux_write_ack(AUX_ENABLE_DEV); /* Enable aux device */
> >         kbd_write_cmd(AUX_INTS_ON); /* Enable controller ints */
> > 
> >         send_data(KBD_CMD_ENABLE);      /* try to workaround toshiba4030cdt problem */
> > 
> > and nothing more. The "Timeout" message comes from the final
> > "send_data()", which seems to imply nothing more than the fact that the
> > keyboard has already locked up by that time.
> > 
> > Now why any other driver _could_ make a difference here is very very
> > unclear. It might be a subtle timing issue, and nothing more.
> 
> My ancient keyboard docs contain warnings like
> 
> "MCA systems with a type 1 controller must wait at least 7 usec
> after bit 0 (status read from 0x64) goes from 0 to 1 before
> reading the data from port 0x60."
> 
> Probably irrelevant these days, but since you mention timing issues...

Well, not to me... :^) I still do most of my testing on MCA-systems.


/David Weinehall
  _                                                                 _ 
 // David Weinehall <tao en acc.umu.se> /> Northern lights wander      \\
//  Project MCA Linux hacker        //  Dance across the winter sky // 
\>  http://www.acc.umu.se/~tao/    </   Full colour fire           </ 


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