projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| a98d506c HG |
1 | Kernel driver sch5627 |
| 2 | ===================== | |
| 3 | ||
| 4 | Supported chips: | |
| 42c027a5 | 5 | |
| a98d506c | 6 | * SMSC SCH5627 |
| 42c027a5 | 7 | |
| a98d506c | 8 | Prefix: 'sch5627' |
| 42c027a5 | 9 | |
| a98d506c | 10 | Addresses scanned: none, address read from Super I/O config space |
| 42c027a5 | 11 | |
| a98d506c HG |
12 | Datasheet: Application Note available upon request |
| 13 | ||
| 14 | Author: Hans de Goede <hdegoede@redhat.com> | |
| 15 | ||
| 16 | ||
| 17 | Description | |
| 18 | ----------- | |
| 19 | ||
| 20 | SMSC SCH5627 Super I/O chips include complete hardware monitoring | |
| 21 | capabilities. They can monitor up to 5 voltages, 4 fans and 8 temperatures. | |
| 22 | ||
| aa9f833d AW |
23 | In addition, the SCH5627 exports data describing which temperature sensors |
| 24 | affect the speed of each fan. Setting pwmX_auto_channels_temp to 0 forces | |
| 25 | the corresponding fan to full speed until another value is written. | |
| 26 | ||
| 312869ec HG |
27 | The SMSC SCH5627 hardware monitoring part also contains an integrated |
| 28 | watchdog. In order for this watchdog to function some motherboard specific | |
| 29 | initialization most be done by the BIOS, so if the watchdog is not enabled | |
| 30 | by the BIOS the sch5627 driver will not register a watchdog device. | |
| 31 | ||
| a98d506c HG |
32 | The hardware monitoring part of the SMSC SCH5627 is accessed by talking |
| 33 | through an embedded microcontroller. An application note describing the | |
| 34 | protocol for communicating with the microcontroller is available upon | |
| 35 | request. Please mail me if you want a copy. |