After modifying smsc47m1.c, sensors-detect didn't detect anything, but manually loading the smsc47m1 driver succeeded and gave me bogus fan speeds, sensors smsc47m1-isa-0800 Adapter: ISA adapter fan1: -1 RPM (min = 2997 RPM, div = 2) fan2: -1 RPM (min = 2997 RPM, div = 2) ls /proc/sys/dev/sensors/smsc47m1-isa-0800/ alarms fan1 fan2 fan_div pwm1 pwm2 [root at gb0010 sensors]# cat /proc/sys/dev/sensors/smsc47m1-isa-0800/* 0 2997 -1 2997 -1 2 2 0 0 0 0 I must have sent you the i2c info before I had loaded one of the modules. I can see both i2c-0 and i2c-1: [root at gb0010 sensors]# cat /proc/bus/i2c i2c-0 smbus SMBus I801 adapter at 0600 Non-I2C SMBus adapter i2c-1 dummy ISA main adapter ISA bus algorithm What do you think is preventing us from accessing the adm1026 chip? > -----Original Message----- > From: Jean Delvare [mailto:khali at linux-fr.org] > Sent: Wednesday, March 03, 2004 11:52 AM > To: Marc Rieffel > Cc: LM Sensors > Subject: Re: lm_sensors on Itanium > > > > With that change, I found the SMSC chip but no sensors. > > This at least means that, if nothing else, you may be able to monitor > your fans with that SMSC chip. The smsc47m1 driver wouldn't > load because > it doesn't recognize the device ID as one it handles. I took a quick > look at the 47B27x datasheet and it _seems_ to be compatible with the > 47M1xx. Same logical device, same registers. If there are subtle > differences, I could have missed them. If you want to take > your chance, > edit smsc47m1.c, edit SMSC_DEVID_MATCH so that it likes your ID (0x51) > and try using it. > > > Neither i2c bus shows anything. > > > [root at gb0010 sensors]# cat /proc/bus/i2c > > i2c-0 dummy ISA main adapter ISA > > bus algorithm > > > > [root at gb0010 sensors]# lm_sensors-2.8.4/prog/detect/i2cdetect 0 > > Error: Can't use SMBus Quick Write command on this bus (ISA bus?) > > > > [root at gb0010 sensors]# lm_sensors-2.8.4/prog/detect/i2cdetect 1 > > WARNING! This program can confuse your I2C bus, cause > data loss and > > worse! I will probe file /dev/i2c-1 > > You have five seconds to reconsider and press CTRL-C! > > > > 0 1 2 3 4 5 6 7 8 9 a b c d e f > > 00: XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX > > 10: XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX > > 20: XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX > > 30: XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX > > 40: XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX > > 50: XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX > > 60: XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX > > 70: XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX > > That still surprises me much. How can i2c-1 exist and not be listed in > /proc/bus/i2c? Very strange. > > The SMBus way looks like a dead end anyway. I fear that we won't > possibly offer you anything but fan monitoring with the SMSC chip. > > -- > Jean Delvare > http://www.ensicaen.ismra.fr/~delvare/ >
