acceptable chip driver limitations

[Abraham vd Merwe]

Hi!

Is it allright if my chip driver read/write's only accept 32-bit
to/from/len's?

I.e. if I return with -EINVAL if somebody tries to read/write a single byte
or tries to read from a non-dword boundary, is that acceptable or should the
driver cater for word/byte read/writes as well?

If this is the case, it complicates things a lot because for instance in my
case the flash device can only handle 32-bit read/write's and smaller
accesses will have to be emulated.

-- 

Regards
 Abraham

First study the enemy.  Seek weakness.
		-- Romulan Commander, "Balance of Terror", stardate 1709.2

__________________________________________________________
 Abraham vd Merwe - 2d3D, Inc.

 Device Driver Development, Outsourcing, Embedded Systems

  Cell: +27 82 565 4451         Snailmail:
   Tel: +27 21 761 7549            Block C, Antree Park
   Fax: +27 21 761 7648            Doncaster Road
 Email: abraham at 2d3d.co.za         Kenilworth, 7700
  Http: http://www.2d3d.com        South Africa

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