Changeset 3007 for lm-sensors/trunk/doc/chips/w83781d
- Timestamp:
- 05/24/05 23:26:22 (8 years ago)
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- 1 modified
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lm-sensors/trunk/doc/chips/w83781d (modified) (7 diffs)
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lm-sensors/trunk/doc/chips/w83781d
r3000 r3007 13 13 Supported chips: 14 14 * Winbond W83781D 15 Prefix 'w83781d'16 Addresses scanned: I2C 0x20 - 0x2f (inclusive), ISA 0x290 (8 I/O ports)17 Datasheet: Publicly available at the Winbond website (www.winbond.com.tw)15 Prefix: 'w83781d' 16 Addresses scanned: I2C 0x20 - 0x2f, ISA 0x290 (8 I/O ports) 17 Datasheet: http://www.winbond-usa.com/products/winbond_products/pdfs/PCIC/w83781d.pdf 18 18 * Winbond W83782D 19 Prefix 'w83782d'20 Addresses scanned: I2C 0x20 - 0x2f (inclusive), ISA 0x290 (8 I/O ports)21 Datasheet: Publicly available at the Winbond website19 Prefix: 'w83782d' 20 Addresses scanned: I2C 0x20 - 0x2f, ISA 0x290 (8 I/O ports) 21 Datasheet: http://www.winbond.com/PDF/sheet/w83782d.pdf 22 22 * Winbond W83783S 23 Prefix 'w83783s'23 Prefix: 'w83783s' 24 24 Addresses scanned: I2C 0x2d 25 Datasheet: Publicly available at the Winbond website25 Datasheet: http://www.winbond-usa.com/products/winbond_products/pdfs/PCIC/w83783s.pdf 26 26 * Winbond W83791D 27 Prefix 'w83791d'28 Addresses scanned: I2C 0x2c - 0x2f (inclusive)29 Datasheet: Publicly available at the Winbond website27 Prefix: 'w83791d' 28 Addresses scanned: I2C 0x2c - 0x2f 29 Datasheet: http://www.winbond-usa.com/products/winbond_products/pdfs/PCIC/w83791d.pdf 30 30 * Winbond W83627HF 31 Prefix 'w83627hf'32 Addresses scanned: I2C 0x20 - 0x2f (inclusive), ISA 0x290 (8 I/O ports)33 Datasheet: Publicly available at the Winbond website31 Prefix: 'w83627hf' 32 Addresses scanned: I2C 0x20 - 0x2f, ISA 0x290 (8 I/O ports) 33 Datasheet: http://www.winbond.com/PDF/sheet/w83627hf.pdf 34 34 * Winbond W83697HF 35 Prefix 'w83697hf'35 Prefix: 'w83697hf' 36 36 Addresses scanned: ISA 0x290 (8 I/O ports) 37 Datasheet: Publicly available at the Winbond website37 Datasheet: http://www.winbond.com/PDF/sheet/w83697hf.pdf 38 38 * Asus AS99127F 39 Prefix 'as99127f'40 Addresses scanned: I2C 0x28 - 0x2f (inclusive)39 Prefix: 'as99127f' 40 Addresses scanned: I2C 0x28 - 0x2f 41 41 Datasheet: Unavailable from Asus 42 42 … … 90 90 91 91 This driver implements support for the Winbond W83781D, W83782D, 92 W8 783S, and W83627HF chips, and the Asus AS99127F chips.92 W83783S, W83791D, W83627HF and W83698HF chips, and the Asus AS99127F chips. 93 93 We will refer to them collectively as W8378* chips. 94 94 … … 104 104 105 105 The W8378* implements temperature sensors (three on the W83781D and W83782D, 106 two on the W83783S), three FANrotation speed sensors, voltage sensors106 two on the W83783S), three fan rotation speed sensors, voltage sensors 107 107 (seven on the W83781D, nine on the W83782D and six on the W83783S), VID 108 108 lines, alarms with beep warnings, and some miscellaneous stuff. … … 126 126 sensor(s) of 0.5 degree. 127 127 128 F ANrotation speeds are reported in RPM (rotations per minute). An alarm is129 triggered if the rotation speed has dropped below a programmable limit. F AN128 Fan rotation speeds are reported in RPM (rotations per minute). An alarm is 129 triggered if the rotation speed has dropped below a programmable limit. Fan 130 130 readings can be divided by a programmable divider (1, 2, 4 or 8 for the 131 131 W83781D; 1, 2, 4, 8, 16, 32, 64 or 128 for the others) to give 132 the readings more range or accuracy. This is important because some FANs 133 report only one 'tick' each rotation, while others report two - making 134 all readings twice as high. Not all RPM values can accurately be represented, 135 so some rounding is done. With a divider of 2, the lowest representable 136 value is around 2600 RPM. 132 the readings more range or accuracy. Not all RPM values can accurately be 133 represented, so some rounding is done. With a divider of 2, the lowest 134 representable value is around 2600 RPM. 137 135 138 136 Voltage sensors (also known as IN sensors) report their values in volts. … … 157 155 158 156 In addition to the alarms described above, there is a CHAS alarm on the 159 chips which triggers if your computer case is open. 157 chips which triggers if your computer case is open. 160 158 161 159 When an alarm goes off, you can be warned by a beeping signal through … … 172 170 The chips only update values each 1.5 seconds; reading them more often 173 171 will do no harm, but will return 'old' values. 174 175 176 W8378* PROBLEMS177 -----------------178 Known problems:179 - Some chips are misidentified.180 This is caused by the chip having the wrong WCHIPID register181 value, so there is no fix. The workaround is to use the182 force_CHIP parameter.183 (modprobe w83781d force_CHIP=BUS,0x2d where CHIP is the chip name184 and BUS is your i2c bus number -185 cat /proc/bus/i2c to see a list of bus numbers)186 172 187 173 … … 571 557 the isa pins) 572 558 573 781d allowable values for fan_div are 1,2,4,8.574 782d/783s allowable values for fan_div are 1,2,4,8,16,32,64,128.575 576 559 577 560
