SDIO stability [was Re: SDIO Performance once again]

Dan Williams dcbw at
Tue Feb 10 10:41:09 EST 2009

On Tue, 2009-02-10 at 16:26 +0100, Sven Neumann wrote:
> Hi,
> On Tue, 2009-02-10 at 10:14 -0500, Dan Williams wrote:
> > You'd see error messages and MMC/SD host register dumps if stuff starts
> > going wrong.  If you don't see anything that looks suspicious, then it
> > may not be the host controller.
> I guess we can rule that out then as I don't see anything suspicious in
> the MMC debug output. I could still try if I can get the SD card slot to
> work in order to stress test the SDIO layer some more. But to me it
> looks like the problem is more likely in the libertas module. How would
> I go about increasing the command timeouts?

cmd.c, lbs_submit_command(), the "timeo" variable.  Might as well double
the values (it uses 3 by default, but 5 for ASSOC and SCAN).


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