On Mon, Feb 09, 2009 at 02:55:46PM +0000, Ben Dooks wrote: > On Fri, Feb 06, 2009 at 04:23:17PM +0100, Rodolfo Giometti wrote: > > It could happen that an i2c adapter may lock the bus due due > > electrical problems, so the user may recover this stale state by using: > > > > $ echo 1 > /sys/class/i2c-adapter/i2c-0/reset > > > > Signed-off-by: Rodolfo Giometti <giometti@xxxxxxxx> > > There doesn't seem to be any locking to stop issuing a reset during > an extant transaction... should the controller driver deal with > cancelling any outstanding transactions? I think this should be done inside each adapter driver since it's an adapter specific issue. If you see next patch of this patchset you can see that the adapter i2c-pxa aborts any transfer currently under way during reset. Ciao, Rodolfo -- GNU/Linux Solutions e-mail: giometti@xxxxxxxxxxxx Linux Device Driver giometti@xxxxxxxx Embedded Systems phone: +39 349 2432127 UNIX programming skype: rodolfo.giometti -- To unsubscribe from this list: send the line "unsubscribe linux-i2c" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
