| Guenter Roeck | c3ff9a6 | 2011-09-02 09:58:37 -0700 | [diff] [blame^] | 1 | Kernel driver ltc2978 |
| 2 | ===================== |
| 3 | |
| 4 | Supported chips: |
| 5 | * Linear Technology LTC2978 |
| 6 | Prefix: 'ltc2978' |
| 7 | Addresses scanned: - |
| 8 | Datasheet: http://cds.linear.com/docs/Datasheet/2978fa.pdf |
| 9 | |
| 10 | Author: Guenter Roeck <guenter.roeck@ericsson.com> |
| 11 | |
| 12 | |
| 13 | Description |
| 14 | ----------- |
| 15 | |
| 16 | The LTC2978 is an octal power supply monitor, supervisor, sequencer and |
| 17 | margin controller. |
| 18 | |
| 19 | |
| 20 | Usage Notes |
| 21 | ----------- |
| 22 | |
| 23 | This driver does not probe for PMBus devices. You will have to instantiate |
| 24 | devices explicitly. |
| 25 | |
| 26 | Example: the following commands will load the driver for an LTC2978 at address |
| 27 | 0x60 on I2C bus #1: |
| 28 | |
| 29 | # modprobe ltc2978 |
| 30 | # echo ltc2978 0x60 > /sys/bus/i2c/devices/i2c-1/new_device |
| 31 | |
| 32 | |
| 33 | Sysfs attributes |
| 34 | ---------------- |
| 35 | |
| 36 | in1_label "vin" |
| 37 | in1_input Measured input voltage. |
| 38 | in1_min Minimum input voltage. |
| 39 | in1_max Maximum input voltage. |
| 40 | in1_lcrit Critical minimum input voltage. |
| 41 | in1_crit Critical maximum input voltage. |
| 42 | in1_min_alarm Input voltage low alarm. |
| 43 | in1_max_alarm Input voltage high alarm. |
| 44 | in1_lcrit_alarm Input voltage critical low alarm. |
| 45 | in1_crit_alarm Input voltage critical high alarm. |
| 46 | in1_lowest Lowest input voltage. |
| 47 | in1_highest Highest input voltage. |
| 48 | in1_reset_history Reset history. Writing into this attribute will reset |
| 49 | history for all attributes. |
| 50 | |
| 51 | in[2-9]_label "vout[1-8]". |
| 52 | in[2-9]_input Measured output voltage. |
| 53 | in[2-9]_min Minimum output voltage. |
| 54 | in[2-9]_max Maximum output voltage. |
| 55 | in[2-9]_lcrit Critical minimum output voltage. |
| 56 | in[2-9]_crit Critical maximum output voltage. |
| 57 | in[2-9]_min_alarm Output voltage low alarm. |
| 58 | in[2-9]_max_alarm Output voltage high alarm. |
| 59 | in[2-9]_lcrit_alarm Output voltage critical low alarm. |
| 60 | in[2-9]_crit_alarm Output voltage critical high alarm. |
| 61 | in[2-9]_lowest Lowest output voltage. |
| 62 | in[2-9]_highest Lowest output voltage. |
| 63 | in[2-9]_reset_history Reset history. Writing into this attribute will reset |
| 64 | history for all attributes. |
| 65 | |
| 66 | temp1_input Measured temperature. |
| 67 | temp1_min Mimimum temperature. |
| 68 | temp1_max Maximum temperature. |
| 69 | temp1_lcrit Critical low temperature. |
| 70 | temp1_crit Critical high temperature. |
| 71 | temp1_min_alarm Chip temperature low alarm. |
| 72 | temp1_max_alarm Chip temperature high alarm. |
| 73 | temp1_lcrit_alarm Chip temperature critical low alarm. |
| 74 | temp1_crit_alarm Chip temperature critical high alarm. |
| 75 | temp1_lowest Lowest measured temperature. |
| 76 | temp1_highest Highest measured temperature. |
| 77 | temp1_reset_history Reset history. Writing into this attribute will reset |
| 78 | history for all attributes. |