Kernel driver ltc4260
Supported chips:
Linear Technology LTC4260
Prefix: 'ltc4260'
Addresses scanned: -
Datasheet:
Author: Guenter Roeck <linux@roeck-us.net>
Description
The LTC4260 Hot Swap controller allows a board to be safely inserted and removed from a live backplane.
Usage Notes
This driver does not probe for LTC4260 devices, since there is no register which can be safely used to identify the chip. You will have to instantiate the devices explicitly.
Example: the following will load the driver for an LTC4260 at address 0x10 on I2C bus #1:
$ modprobe ltc4260 $ echo ltc4260 0x10 > /sys/bus/i2c/devices/i2c-1/new_device
Sysfs entries
Voltage readings provided by this driver are reported as obtained from the ADC registers. If a set of voltage divider resistors is installed, calculate the real voltage by multiplying the reported value with (R1+R2)/R2, where R1 is the value of the divider resistor against the measured voltage and R2 is the value of the divider resistor against Ground.
Current reading provided by this driver is reported as obtained from the ADC Current Sense register. The reported value assumes that a 1 mOhm sense resistor is installed. If a different sense resistor is installed, calculate the real current by dividing the reported value by the sense resistor value in mOhm.
| in1_input | SOURCE voltage (mV) |
| in1_min_alarm | Undervoltage alarm |
| in1_max_alarm | Overvoltage alarm |
| in2_input | ADIN voltage (mV) |
| in2_alarm | Power bad alarm |
| curr1_input | SENSE current (mA) |
| curr1_alarm | SENSE overcurrent alarm |