Hi, I added new adresses to emc2103 driver with no effect. I checked if the module works with trying to load i2c-stub module with 0x2e & other addresses - it triggers the device detection in the module.= but of course without success as it is a dummy i2c device. After that I think I'm beginning to understand how it all works so I ran i2cdetect # i2cdetect -l i2c-0 i2c i915 gmbus ssc I2C adapter i2c-1 i2c i915 gmbus vga I2C adapter i2c-2 i2c i915 gmbus panel I2C adapter i2c-3 i2c i915 gmbus dpc I2C adapter i2c-4 i2c i915 gmbus dpb I2C adapter i2c-5 i2c i915 gmbus dpd I2C adapter i2c-6 i2c DPDDC-D I2C adapter i2c-7 smbus SMBus stub driver SMBus adapter (dummy driver I played with) Should I see emc adapter there or not? I think I should. >From what I understand to instantiate a device from user space proper entry in /sys/bus/i2c/devices/i2c-... has to exist. Is it possible that EMC2104 in my laptop is somehow invisible to OS/i2c bus? I'm sure it is there - I can send You a picture ;-) Igor 2013/10/29 Jean Delvare <khali@xxxxxxxxxxxx>: > Hi Guenter, hi Igor, > > On Sun, 27 Oct 2013 18:26:20 -0700, Guenter Roeck wrote: >> (...) It should be possible to add support for EMC2104 >> to the EMC2103 driver, but someone would have to implement it. >> If you want to hack, you could add the emc2104 device id (0x1d) >> and the emmc2104 I2C address (0x2f) to the driver. That _should_ >> give you access to some of the temperature sensors and to one >> of the fan controllers. No guarantee, though. > > For that kind of test, you don't even need to change the code. You can > simply instantiate the device from user-space manually using method 4 > described in > http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/tree/Documentation/i2c/instantiating-devices > > Whether it will work or cause your hardware to crash and burn, I can't > say. I would be very cautious with a fan controller chip. > > Igor, could you please provide a register dump (using the i2c-dev > driver + i2cdump from the i2c-tools package) of your EMC2104 chip? > > -- > Jean Delvare _______________________________________________ lm-sensors mailing list lm-sensors@xxxxxxxxxxxxxx http://lists.lm-sensors.org/mailman/listinfo/lm-sensors
