1Kernel driver bel-pfe 2====================== 3 4Supported chips: 5 6 * BEL PFE1100 7 8 Prefixes: 'pfe1100' 9 10 Addresses scanned: - 11 12 Datasheet: https://www.belfuse.com/resources/datasheets/powersolutions/ds-bps-pfe1100-12-054xa.pdf 13 14 * BEL PFE3000 15 16 Prefixes: 'pfe3000' 17 18 Addresses scanned: - 19 20 Datasheet: https://www.belfuse.com/resources/datasheets/powersolutions/ds-bps-pfe3000-series.pdf 21 22Author: Tao Ren <rentao.bupt@gmail.com> 23 24 25Description 26----------- 27 28This driver supports hardware monitoring for below power supply devices 29which support PMBus Protocol: 30 31 * BEL PFE1100 32 33 1100 Watt AC to DC power-factor-corrected (PFC) power supply. 34 PMBus Communication Manual is not publicly available. 35 36 * BEL PFE3000 37 38 3000 Watt AC/DC power-factor-corrected (PFC) and DC-DC power supply. 39 PMBus Communication Manual is not publicly available. 40 41The driver is a client driver to the core PMBus driver. Please see 42Documentation/hwmon/pmbus.rst for details on PMBus client drivers. 43 44 45Usage Notes 46----------- 47 48This driver does not auto-detect devices. You will have to instantiate the 49devices explicitly. Please see Documentation/i2c/instantiating-devices.rst for 50details. 51 52Example: the following will load the driver for an PFE3000 at address 0x20 53on I2C bus #1:: 54 55 $ modprobe bel-pfe 56 $ echo pfe3000 0x20 > /sys/bus/i2c/devices/i2c-1/new_device 57 58 59Platform data support 60--------------------- 61 62The driver supports standard PMBus driver platform data. 63 64 65Sysfs entries 66------------- 67 68======================= ======================================================= 69curr1_label "iin" 70curr1_input Measured input current 71curr1_max Input current max value 72curr1_max_alarm Input current max alarm 73 74curr[2-3]_label "iout[1-2]" 75curr[2-3]_input Measured output current 76curr[2-3]_max Output current max value 77curr[2-3]_max_alarm Output current max alarm 78 79fan[1-2]_input Fan 1 and 2 speed in RPM 80fan1_target Set fan speed reference for both fans 81 82in1_label "vin" 83in1_input Measured input voltage 84in1_crit Input voltage critical max value 85in1_crit_alarm Input voltage critical max alarm 86in1_lcrit Input voltage critical min value 87in1_lcrit_alarm Input voltage critical min alarm 88in1_max Input voltage max value 89in1_max_alarm Input voltage max alarm 90 91in2_label "vcap" 92in2_input Hold up capacitor voltage 93 94in[3-8]_label "vout[1-3,5-7]" 95in[3-8]_input Measured output voltage 96in[3-4]_alarm vout[1-2] output voltage alarm 97 98power[1-2]_label "pin[1-2]" 99power[1-2]_input Measured input power 100power[1-2]_alarm Input power high alarm 101 102power[3-4]_label "pout[1-2]" 103power[3-4]_input Measured output power 104 105temp[1-3]_input Measured temperature 106temp[1-3]_alarm Temperature alarm 107======================= ======================================================= 108 109.. note:: 110 111 - curr3, fan2, vout[2-7], vcap, pin2, pout2 and temp3 attributes only 112 exist for PFE3000. 113