0001 Kernel driver bel-pfe
0002 ======================
0003
0004 Supported chips:
0005
0006 * BEL PFE1100
0007
0008 Prefixes: 'pfe1100'
0009
0010 Addresses scanned: -
0011
0012 Datasheet: https://www.belfuse.com/resources/datasheets/powersolutions/ds-bps-pfe1100-12-054xa.pdf
0013
0014 * BEL PFE3000
0015
0016 Prefixes: 'pfe3000'
0017
0018 Addresses scanned: -
0019
0020 Datasheet: https://www.belfuse.com/resources/datasheets/powersolutions/ds-bps-pfe3000-series.pdf
0021
0022 Author: Tao Ren <rentao.bupt@gmail.com>
0023
0024
0025 Description
0026 -----------
0027
0028 This driver supports hardware monitoring for below power supply devices
0029 which support PMBus Protocol:
0030
0031 * BEL PFE1100
0032
0033 1100 Watt AC to DC power-factor-corrected (PFC) power supply.
0034 PMBus Communication Manual is not publicly available.
0035
0036 * BEL PFE3000
0037
0038 3000 Watt AC/DC power-factor-corrected (PFC) and DC-DC power supply.
0039 PMBus Communication Manual is not publicly available.
0040
0041 The driver is a client driver to the core PMBus driver. Please see
0042 Documentation/hwmon/pmbus.rst for details on PMBus client drivers.
0043
0044
0045 Usage Notes
0046 -----------
0047
0048 This driver does not auto-detect devices. You will have to instantiate the
0049 devices explicitly. Please see Documentation/i2c/instantiating-devices.rst for
0050 details.
0051
0052 Example: the following will load the driver for an PFE3000 at address 0x20
0053 on I2C bus #1::
0054
0055 $ modprobe bel-pfe
0056 $ echo pfe3000 0x20 > /sys/bus/i2c/devices/i2c-1/new_device
0057
0058
0059 Platform data support
0060 ---------------------
0061
0062 The driver supports standard PMBus driver platform data.
0063
0064
0065 Sysfs entries
0066 -------------
0067
0068 ======================= =======================================================
0069 curr1_label "iin"
0070 curr1_input Measured input current
0071 curr1_max Input current max value
0072 curr1_max_alarm Input current max alarm
0073
0074 curr[2-3]_label "iout[1-2]"
0075 curr[2-3]_input Measured output current
0076 curr[2-3]_max Output current max value
0077 curr[2-3]_max_alarm Output current max alarm
0078
0079 fan[1-2]_input Fan 1 and 2 speed in RPM
0080 fan1_target Set fan speed reference for both fans
0081
0082 in1_label "vin"
0083 in1_input Measured input voltage
0084 in1_crit Input voltage critical max value
0085 in1_crit_alarm Input voltage critical max alarm
0086 in1_lcrit Input voltage critical min value
0087 in1_lcrit_alarm Input voltage critical min alarm
0088 in1_max Input voltage max value
0089 in1_max_alarm Input voltage max alarm
0090
0091 in2_label "vcap"
0092 in2_input Hold up capacitor voltage
0093
0094 in[3-8]_label "vout[1-3,5-7]"
0095 in[3-8]_input Measured output voltage
0096 in[3-4]_alarm vout[1-2] output voltage alarm
0097
0098 power[1-2]_label "pin[1-2]"
0099 power[1-2]_input Measured input power
0100 power[1-2]_alarm Input power high alarm
0101
0102 power[3-4]_label "pout[1-2]"
0103 power[3-4]_input Measured output power
0104
0105 temp[1-3]_input Measured temperature
0106 temp[1-3]_alarm Temperature alarm
0107 ======================= =======================================================
0108
0109 .. note::
0110
0111 - curr3, fan2, vout[2-7], vcap, pin2, pout2 and temp3 attributes only
0112 exist for PFE3000.
