Jean Delvare wrote: > On Tue, 08 Jul 2008 15:09:32 +0200, Wolfgang Grandegger wrote: >> Jean Delvare wrote: >>> On Tue, 08 Jul 2008 11:22:36 +0200, Wolfgang Grandegger wrote: >>>> The existing driver for the LM75 is unable to identify a compatible DS75 >>>> device properly. This patch from >>>> >>>> http://lists.lm-sensors.org/pipermail/lm-sensors/2007-February/018838.html >>>> >>>> does fix the problem and I wonder why it did not make it into the kernel yet. >>> Because meanwhile the lm75 driver was converted to a new-style >>> i2c driver, with support for the DS75: >>> >>> http://lm-sensors.org/kernel?p=kernel/mhoffman/hwmon-2.6.git;a=commit;h=ea6db11742de63324f29d1383122657cabe90940 >>> >>> This will presumably go in kernel 2.6.27-rc1. >> Ah, thanks for the info. Unfortunately, this new driver does not work >> with the DS75 on our custom board. THe identification fails, because >> it's as in the old lm75.c driver (and not like Alan suggested). > > There's no "detection" involved for the new-style i2c devices. > Presumably you are still using the old binding model, not taking > benefit of the patch at all. Use i2c_register_board_info() to > instantiate your "ds75" i2c device from you board's platform code, and > it should work. OK, I see. For my board I need to add a FDT node to the DTS file and add some binding code like for the RTC. For the lm75, it still works without that. Wolfgang.
