On Tue, 30 Oct 2007 15:26:55 -0700, d. d. gmane wrote: > Here are the results of: isadump 0x2e 0x2f 0x08 > > [root at skippy dump]# pwd > /home/david/lm_sensors-3.0.0-rc3/prog/dump > > [root at skippy dump]# ./isadump 0x2e 0x2f 0x08 > WARNING! Running this program can cause system crashes, data loss and worse! > I will probe address register 0x2e and data register 0x2f. > Probing bank 8 using bank register 0x07. > Continue? [Y/n] Y > 0 1 2 3 4 5 6 7 8 9 a b c d e f > 00: 00 00 00 00 00 00 00 08 00 00 00 00 00 00 00 00 > 10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 01 41 > 20: f1 91 00 00 c1 01 00 91 00 91 00 00 00 00 00 00 > 30: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 > 40: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 > 50: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 > 60: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 > 70: 00 03 00 00 04 04 00 00 00 00 00 00 00 00 00 00 > 80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 > 90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 > a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 > b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 > c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 > d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 > e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 > f0: 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 OK, access to the hardware monitoring device is disabled. If you want to investigate a bit further, you can attempt to enable it: * Search in /proc/ioports for a free space of at least 256 bytes, aligned on a 256-byte boundary (e.g. 0x0a00 to 0x0aff). * Write the address in question to the PC8374L chip and enable the logical device: isaset 0x2e 0x2f 0x07 0x08 isaset 0x2e 0x2f 0x60 0x0a # <-- high byte of the address isaset 0x2e 0x2f 0x61 0x00 # <-- low byte of the address isaset 0x2e 0x2f 0x30 0x01 * Run isadump again and check that the writes were successful: isadump 0x2e 0x2f 0x08 * If registers 0x30, 0x60 and 0x61 have the expected values, try dumping the logical device's I/O area: isadump -f 0x0a00 # <-- adjust with the address you used Only do that if you are really motivated in getting the voltage readings. I don't know the PC8374L very well and it seems to be a somewhat complex chip - or at least different from what I'm used to. Even if the sequence above reveals something interesting, there's probably a long way to go before you can get the voltage readings, and I am almost certain that you won't get temperatures nor fan speeds from that device anyway. -- Jean Delvare
