Hi Ladislav, hi all, > Chip is searched by bus number rather than its own proprietary id. Yes, I think it makes much more sense (especially since the proprietary id was not known by anyone outside of the ds1337 driver). I think I understand that ds1337_do_command() will be called from some other kernel driver. Why isn't it exported then? I'd expect: EXPORT_SYMBOL(ds1337_do_command); next to the end of the ds1337 driver. Maybe it would also make sense to have a ds1337.h header file declaring this function? Additionally, I would welcome an additional patch documenting the fact that the ds1337 driver will work fine with the Dallas DS1339 real-time clock chip. Thanks, -- Jean Delvare