pmc551 status

David Woodhouse David.Woodhouse at
Thu Oct 21 03:52:43 EDT 1999

mferrell at said:
>  And that's it.  It opens the device for a short duration of time ..
> but nothing comes forth.  I tried all sortsa fun with noluck.  Any
> ideas, suggestions, large bat's to beat the system about the head
> with? 

Hmmm. To test your driver itself, use the character devices, which are what 
/dev/mtd0 ought to be.

When you're sure that's OK, you ought just to be able to load the mtdblock 
device (after your driver) and use /dev/mtdblock0 too. There may be bugs in 
the mtdblock code, however.

Can you trace and send me the oops that you get if you load mtd, pmc551, then 
mtdblock in that order?

Also, it's worth checking that the mtdblock code actually sets the size of the 
block device. The kernel might be refusing to pass on any read() requests 
because we've left the device size set to zero.

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