1Kernel driver smm665 2==================== 3 4Supported chips: 5 6 * Summit Microelectronics SMM465 7 8 Prefix: 'smm465' 9 10 Addresses scanned: - 11 12 Datasheet: 13 14 http://www.summitmicro.com/prod_select/summary/SMM465/SMM465DS.pdf 15 16 * Summit Microelectronics SMM665, SMM665B 17 18 Prefix: 'smm665' 19 20 Addresses scanned: - 21 22 Datasheet: 23 24 http://www.summitmicro.com/prod_select/summary/SMM665/SMM665B_2089_20.pdf 25 26 * Summit Microelectronics SMM665C 27 28 Prefix: 'smm665c' 29 30 Addresses scanned: - 31 32 Datasheet: 33 34 http://www.summitmicro.com/prod_select/summary/SMM665C/SMM665C_2125.pdf 35 36 * Summit Microelectronics SMM764 37 38 Prefix: 'smm764' 39 40 Addresses scanned: - 41 42 Datasheet: 43 44 http://www.summitmicro.com/prod_select/summary/SMM764/SMM764_2098.pdf 45 46 * Summit Microelectronics SMM766, SMM766B 47 48 Prefix: 'smm766' 49 50 Addresses scanned: - 51 52 Datasheets: 53 54 http://www.summitmicro.com/prod_select/summary/SMM766/SMM766_2086.pdf 55 56 http://www.summitmicro.com/prod_select/summary/SMM766B/SMM766B_2122.pdf 57 58Author: Guenter Roeck <linux@roeck-us.net> 59 60 61Module Parameters 62----------------- 63 64* vref: int 65 Default: 1250 (mV) 66 67 Reference voltage on VREF_ADC pin in mV. It should not be necessary to set 68 this parameter unless a non-default reference voltage is used. 69 70 71Description 72----------- 73 74[From datasheet] The SMM665 is an Active DC Output power supply Controller 75that monitors, margins and cascade sequences power. The part monitors six 76power supply channels as well as VDD, 12V input, two general-purpose analog 77inputs and an internal temperature sensor using a 10-bit ADC. 78 79Each monitored channel has its own high and low limits, plus a critical 80limit. 81 82Support for SMM465, SMM764, and SMM766 has been implemented but is untested. 83 84 85Usage Notes 86----------- 87 88This driver does not probe for devices, since there is no register which 89can be safely used to identify the chip. You will have to instantiate 90the devices explicitly. When instantiating the device, you have to specify 91its configuration register address. 92 93Example: the following will load the driver for an SMM665 at address 0x57 94on I2C bus #1:: 95 96 $ modprobe smm665 97 $ echo smm665 0x57 > /sys/bus/i2c/devices/i2c-1/new_device 98 99 100Sysfs entries 101------------- 102 103This driver uses the values in the datasheet to convert ADC register values 104into the values specified in the sysfs-interface document. All attributes are 105read only. 106 107Min, max, lcrit, and crit values are used by the chip to trigger external signals 108and/or other activity. Triggered signals can include HEALTHY, RST, Power Off, 109or Fault depending on the chip configuration. The driver reports values as lcrit 110or crit if exceeding the limits triggers RST, Power Off, or Fault, and as min or 111max otherwise. For details please see the SMM665 datasheet. 112 113For SMM465 and SMM764, values for Channel E and F are reported but undefined. 114 115======================= ======================================================= 116in1_input 12V input voltage (mV) 117in2_input 3.3V (VDD) input voltage (mV) 118in3_input Channel A voltage (mV) 119in4_input Channel B voltage (mV) 120in5_input Channel C voltage (mV) 121in6_input Channel D voltage (mV) 122in7_input Channel E voltage (mV) 123in8_input Channel F voltage (mV) 124in9_input AIN1 voltage (mV) 125in10_input AIN2 voltage (mV) 126 127in1_min 12v input minimum voltage (mV) 128in2_min 3.3V (VDD) input minimum voltage (mV) 129in3_min Channel A minimum voltage (mV) 130in4_min Channel B minimum voltage (mV) 131in5_min Channel C minimum voltage (mV) 132in6_min Channel D minimum voltage (mV) 133in7_min Channel E minimum voltage (mV) 134in8_min Channel F minimum voltage (mV) 135in9_min AIN1 minimum voltage (mV) 136in10_min AIN2 minimum voltage (mV) 137 138in1_max 12v input maximum voltage (mV) 139in2_max 3.3V (VDD) input maximum voltage (mV) 140in3_max Channel A maximum voltage (mV) 141in4_max Channel B maximum voltage (mV) 142in5_max Channel C maximum voltage (mV) 143in6_max Channel D maximum voltage (mV) 144in7_max Channel E maximum voltage (mV) 145in8_max Channel F maximum voltage (mV) 146in9_max AIN1 maximum voltage (mV) 147in10_max AIN2 maximum voltage (mV) 148 149in1_lcrit 12v input critical minimum voltage (mV) 150in2_lcrit 3.3V (VDD) input critical minimum voltage (mV) 151in3_lcrit Channel A critical minimum voltage (mV) 152in4_lcrit Channel B critical minimum voltage (mV) 153in5_lcrit Channel C critical minimum voltage (mV) 154in6_lcrit Channel D critical minimum voltage (mV) 155in7_lcrit Channel E critical minimum voltage (mV) 156in8_lcrit Channel F critical minimum voltage (mV) 157in9_lcrit AIN1 critical minimum voltage (mV) 158in10_lcrit AIN2 critical minimum voltage (mV) 159 160in1_crit 12v input critical maximum voltage (mV) 161in2_crit 3.3V (VDD) input critical maximum voltage (mV) 162in3_crit Channel A critical maximum voltage (mV) 163in4_crit Channel B critical maximum voltage (mV) 164in5_crit Channel C critical maximum voltage (mV) 165in6_crit Channel D critical maximum voltage (mV) 166in7_crit Channel E critical maximum voltage (mV) 167in8_crit Channel F critical maximum voltage (mV) 168in9_crit AIN1 critical maximum voltage (mV) 169in10_crit AIN2 critical maximum voltage (mV) 170 171in1_crit_alarm 12v input critical alarm 172in2_crit_alarm 3.3V (VDD) input critical alarm 173in3_crit_alarm Channel A critical alarm 174in4_crit_alarm Channel B critical alarm 175in5_crit_alarm Channel C critical alarm 176in6_crit_alarm Channel D critical alarm 177in7_crit_alarm Channel E critical alarm 178in8_crit_alarm Channel F critical alarm 179in9_crit_alarm AIN1 critical alarm 180in10_crit_alarm AIN2 critical alarm 181 182temp1_input Chip temperature 183temp1_min Mimimum chip temperature 184temp1_max Maximum chip temperature 185temp1_crit Critical chip temperature 186temp1_crit_alarm Temperature critical alarm 187======================= ======================================================= 188
