People ask how to write the CIS on a SmartMedia card using an sddr09
reader/writer.  The patch below documents the required command (but does
not add the code).

Two years ago or so I used this to fix the CIS on a card that my camera no
longer wanted to accept.  A Linux utility to do this might be useful, but
the problem always is that we do not really have a good mechanism.

How does one tell a driver that it has to do something special?  Add yet
another ioctl?