Based on kernel version 4.16.1. Page generated on 2018-04-09 11:53 EST.
1 Kernel driver ltc4260 2 ===================== 3 4 Supported chips: 5 * Linear Technology LTC4260 6 Prefix: 'ltc4260' 7 Addresses scanned: - 8 Datasheet: 9 http://cds.linear.com/docs/en/datasheet/4260fc.pdf 10 11 Author: Guenter Roeck <linux@roeck-us.net> 12 13 14 Description 15 ----------- 16 17 The LTC4260 Hot Swap controller allows a board to be safely inserted 18 and removed from a live backplane. 19 20 21 Usage Notes 22 ----------- 23 24 This driver does not probe for LTC4260 devices, since there is no register 25 which can be safely used to identify the chip. You will have to instantiate 26 the devices explicitly. 27 28 Example: the following will load the driver for an LTC4260 at address 0x10 29 on I2C bus #1: 30 $ modprobe ltc4260 31 $ echo ltc4260 0x10 > /sys/bus/i2c/devices/i2c-1/new_device 32 33 34 Sysfs entries 35 ------------- 36 37 Voltage readings provided by this driver are reported as obtained from the ADC 38 registers. If a set of voltage divider resistors is installed, calculate the 39 real voltage by multiplying the reported value with (R1+R2)/R2, where R1 is the 40 value of the divider resistor against the measured voltage and R2 is the value 41 of the divider resistor against Ground. 42 43 Current reading provided by this driver is reported as obtained from the ADC 44 Current Sense register. The reported value assumes that a 1 mOhm sense resistor 45 is installed. If a different sense resistor is installed, calculate the real 46 current by dividing the reported value by the sense resistor value in mOhm. 47 48 in1_input SOURCE voltage (mV) 49 in1_min_alarm Undervoltage alarm 50 in1_max_alarm Overvoltage alarm 51 52 in2_input ADIN voltage (mV) 53 in2_alarm Power bad alarm 54 55 curr1_input SENSE current (mA) 56 curr1_alarm SENSE overcurrent alarm