Based on kernel version 4.16.1. Page generated on 2018-04-09 11:53 EST.
1 Kernel driver lineage-pem 2 ========================= 3 4 Supported devices: 5 * Lineage Compact Power Line Power Entry Modules 6 Prefix: 'lineage-pem' 7 Addresses scanned: - 8 Documentation: 9 http://www.lineagepower.com/oem/pdf/CPLI2C.pdf 10 11 Author: Guenter Roeck <linux@roeck-us.net> 12 13 14 Description 15 ----------- 16 17 This driver supports various Lineage Compact Power Line DC/DC and AC/DC 18 converters such as CP1800, CP2000AC, CP2000DC, CP2100DC, and others. 19 20 Lineage CPL power entry modules are nominally PMBus compliant. However, most 21 standard PMBus commands are not supported. Specifically, all hardware monitoring 22 and status reporting commands are non-standard. For this reason, a standard 23 PMBus driver can not be used. 24 25 26 Usage Notes 27 ----------- 28 29 This driver does not probe for Lineage CPL devices, since there is no register 30 which can be safely used to identify the chip. You will have to instantiate 31 the devices explicitly. 32 33 Example: the following will load the driver for a Lineage PEM at address 0x40 34 on I2C bus #1: 35 $ modprobe lineage-pem 36 $ echo lineage-pem 0x40 > /sys/bus/i2c/devices/i2c-1/new_device 37 38 All Lineage CPL power entry modules have a built-in I2C bus master selector 39 (PCA9541). To ensure device access, this driver should only be used as client 40 driver to the pca9541 I2C master selector driver. 41 42 43 Sysfs entries 44 ------------- 45 46 All Lineage CPL devices report output voltage and device temperature as well as 47 alarms for output voltage, temperature, input voltage, input current, input power, 48 and fan status. 49 50 Input voltage, input current, input power, and fan speed measurement is only 51 supported on newer devices. The driver detects if those attributes are supported, 52 and only creates respective sysfs entries if they are. 53 54 in1_input Output voltage (mV) 55 in1_min_alarm Output undervoltage alarm 56 in1_max_alarm Output overvoltage alarm 57 in1_crit Output voltage critical alarm 58 59 in2_input Input voltage (mV, optional) 60 in2_alarm Input voltage alarm 61 62 curr1_input Input current (mA, optional) 63 curr1_alarm Input overcurrent alarm 64 65 power1_input Input power (uW, optional) 66 power1_alarm Input power alarm 67 68 fan1_input Fan 1 speed (rpm, optional) 69 fan2_input Fan 2 speed (rpm, optional) 70 fan3_input Fan 3 speed (rpm, optional) 71 72 temp1_input 73 temp1_max 74 temp1_crit 75 temp1_alarm 76 temp1_crit_alarm 77 temp1_fault