| Kernel driver ltc4215 |
| ===================== |
| |
| Supported chips: |
| * Linear Technology LTC4215 |
| Prefix: 'ltc4215' |
| Addresses scanned: 0x44 |
| Datasheet: |
| http://www.linear.com/pc/downloadDocument.do?navId=H0,C1,C1003,C1006,C1163,P17572,D12697 |
| |
| Author: Ira W. Snyder <iws@ovro.caltech.edu> |
| |
| |
| Description |
| ----------- |
| |
| The LTC4215 controller allows a board to be safely inserted and removed |
| from a live backplane. |
| |
| |
| Usage Notes |
| ----------- |
| |
| This driver does not probe for LTC4215 devices, due to the fact that some |
| of the possible addresses are unfriendly to probing. You will have to |
| instantiate the devices explicitly. |
| |
| Example: the following will load the driver for an LTC4215 at address 0x44 |
| on I2C bus #0: |
| $ modprobe ltc4215 |
| $ echo ltc4215 0x44 > /sys/bus/i2c/devices/i2c-0/new_device |
| |
| |
| Sysfs entries |
| ------------- |
| |
| The LTC4215 has built-in limits for overvoltage, undervoltage, and |
| undercurrent warnings. This makes it very likely that the reference |
| circuit will be used. |
| |
| in1_input input voltage |
| in2_input output voltage |
| |
| in1_min_alarm input undervoltage alarm |
| in1_max_alarm input overvoltage alarm |
| |
| curr1_input current |
| curr1_max_alarm overcurrent alarm |
| |
| power1_input power usage |
| power1_alarm power bad alarm |
