test:/usr/local/src/lm_sensors2 # modprobe i2c-piix4
/lib/modules/2.4.9-ac18/kernel/drivers/i2c/i2c-piix4.o: init_module: No such device
Hint: insmod errors can be caused by incorrect module parameters, including invalid IO or IRQ parameters
/lib/modules/2.4.9-ac18/kernel/drivers/i2c/i2c-piix4.o: insmod /lib/modules/2.4.9-ac18/kernel/drivers/i2c/i2c-piix4.o failed
/lib/modules/2.4.9-ac18/kernel/drivers/i2c/i2c-piix4.o: insmod i2c-piix4 failed
Using insmod and force=1 gave:
test:/usr/local/src/lm_sensors2 # insmod /lib/modules/2.4.9-ac18/kernel/drivers/i2c/i2c-piix4.o force=1
/lib/modules/2.4.9-ac18/kernel/drivers/i2c/i2c-piix4.o: init_module: No such device
Hint: insmod errors can be caused by incorrect module parameters, including invalid IO or IRQ parameters
The entry in dmesg for these operations was:
i2c-piix4.o version 2.6.1 (20010830)
i2c-piix4.o: Found PIIX4 device
i2c-piix4.o: SMB region 0x1040 already in use!
i2c-piix4.o: Device not detected, module not inserted.
So I then looked at the /proc/ioports entries:
04d0-04d1 : PNP0401
0c00-0c3f : Intel Corporation 82371AB PIIX4 ACPI
0c00-0c3f : PNP0401
0ca0-0ca3 : PNP0401
0cb8-0cbf : PNP0401
0cf8-0cff : PCI conf1
1000-103f : PNP0401
1040-105f : Intel Corporation 82371AB PIIX4 ACPI
1040-104f : PNP0401
When I recompiled the kernel without PNP support altogether the module loaded
just fine and then the ioports entries looked like:
0c00-0c3f : Intel Corporation 82371AB PIIX4 ACPI
0cf8-0cff : PCI conf1
1040-105f : Intel Corporation 82371AB PIIX4 ACPI
1040-1047 : piix4-smbus
and the dmesg output for the i2c stuff was:
i2c-core.o: i2c core module version 2.6.1 (20010830)
i2c-piix4.o version 2.6.1 (20010830)
i2c-piix4.o: Found PIIX4 device
i2c-core.o: adapter SMBus PIIX4 adapter at 1040 registered as adapter 0.
i2c-piix4.o: SMBus detected and initialized
i2c-proc.o version 2.6.1 (20010830)
lm75.o version 2.6.1 (20010830)
i2c-core.o: driver LM75 sensor chip driver registered.
i2c-core.o: client [LM75 chip] registered to adapter [SMBus PIIX4 adapter at 1040](pos. 0).
Not sure if this is expected behavior but thought I would report it here.
-- Steven A. DuChene sad@ale.org linux-clusters@mindspring.com sduchene@mindspring.comhttp://www.mindspring.com/~sduchene/ - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/