diff options
| -rw-r--r-- | Documentation/hwmon/pc87360 | 38 |
1 files changed, 26 insertions, 12 deletions
diff --git a/Documentation/hwmon/pc87360 b/Documentation/hwmon/pc87360 index d5f5cf16ce59..4bad07bce54b 100644 --- a/Documentation/hwmon/pc87360 +++ b/Documentation/hwmon/pc87360 @@ -2,14 +2,19 @@ Kernel driver pc87360 ===================== Supported chips: + * National Semiconductor PC87360, PC87363, PC87364, PC87365 and PC87366 + Prefixes: 'pc87360', 'pc87363', 'pc87364', 'pc87365', 'pc87366' + Addresses scanned: none, address read from Super I/O config space + Datasheets: No longer available Authors: Jean Delvare <jdelvare@suse.de> Thanks to Sandeep Mehta, Tonko de Rooy and Daniel Ceregatti for testing. + Thanks to Rudolf Marek for helping me investigate conversion issues. @@ -17,11 +22,13 @@ Module Parameters ----------------- * init int - Chip initialization level: - 0: None - *1: Forcibly enable internal voltage and temperature channels, except in9 - 2: Forcibly enable all voltage and temperature channels, except in9 - 3: Forcibly enable all voltage and temperature channels, including in9 + Chip initialization level: + + - 0: None + - **1**: Forcibly enable internal voltage and temperature channels, + except in9 + - 2: Forcibly enable all voltage and temperature channels, except in9 + - 3: Forcibly enable all voltage and temperature channels, including in9 Note that this parameter has no effect for the PC87360, PC87363 and PC87364 chips. @@ -43,13 +50,15 @@ hardware monitoring chipsets, not only controlling and monitoring three fans, but also monitoring eleven voltage inputs and two (PC87365) or up to four (PC87366) temperatures. + =========== ======= ======= ======= ======= ===== Chip #vin #fan #pwm #temp devid - + =========== ======= ======= ======= ======= ===== PC87360 - 2 2 - 0xE1 PC87363 - 2 2 - 0xE8 PC87364 - 3 3 - 0xE4 PC87365 11 3 3 2 0xE5 PC87366 11 3 3 3-4 0xE9 + =========== ======= ======= ======= ======= ===== The driver assumes that no more than one chip is present, and one of the standard Super I/O addresses is used (0x2E/0x2F or 0x4E/0x4F) @@ -68,18 +77,23 @@ have to care no more. For reference, here are a few values about clock dividers: - slowest accuracy highest - measurable around 3000 accurate + =========== =============== =============== =========== + slowest accuracy highest + measurable around 3000 accurate divider speed (RPM) RPM (RPM) speed (RPM) - 1 1882 18 6928 - 2 941 37 4898 - 4 470 74 3464 - 8 235 150 2449 + =========== =============== =============== =========== + 1 1882 18 6928 + 2 941 37 4898 + 4 470 74 3464 + 8 235 150 2449 + =========== =============== =============== =========== For the curious, here is how the values above were computed: + * slowest measurable speed: clock/(255*divider) * accuracy around 3000 RPM: 3000^2/clock * highest accurate speed: sqrt(clock*100) + The clock speed for the PC87360 family is 480 kHz. I arbitrarily chose 100 RPM as the lowest acceptable accuracy. |