Re: w1 driver for omap error -- reversed byte sequence in netlink slave message

[Andrew Morton <akpm@linux-foundation.org>]

On Thu, 21 Apr 2011 21:53:39 -0400 Paul Alfille <paul.alfille@gmail.com> wrote:

> OWFS (one-wire filesystem -- www.owfs.org) seems to be the only user
> of the w1 netlink messages. We use them to extend the kernel 1-wire
> system from a simple temperature sensor to a complete 1-wire bus
> master. Thus we've uncovered a bug -- byte reversal -- in one of the
> sub-modules.
> 
> 1-wire devices have a unique 64-bit address (including an 8-bit CRC)
> that is reported by the netlink W1_CMD_SEARCH message. For the omap
> bus master, and only the omap bus master, the slave addresses are
> byte-order reversed. If the slave byte order is reversed in that case,
> the CRC8 is then correct, the slave address then matches the actual
> device address lettered on the device, and all other commands work
> correctly.
> 
> The driver is in kernel/drivers/w1/masters/omap_hdq.c
> 

Have you fixed it?  Can you send us a tested patch to look at?

Thanks.