| Kernel driver smm665 |
| ==================== |
| |
| Supported chips: |
| |
| * Summit Microelectronics SMM465 |
| |
| Prefix: 'smm465' |
| |
| Addresses scanned: - |
| |
| Datasheet: |
| |
| http://www.summitmicro.com/prod_select/summary/SMM465/SMM465DS.pdf |
| |
| * Summit Microelectronics SMM665, SMM665B |
| |
| Prefix: 'smm665' |
| |
| Addresses scanned: - |
| |
| Datasheet: |
| |
| http://www.summitmicro.com/prod_select/summary/SMM665/SMM665B_2089_20.pdf |
| |
| * Summit Microelectronics SMM665C |
| |
| Prefix: 'smm665c' |
| |
| Addresses scanned: - |
| |
| Datasheet: |
| |
| http://www.summitmicro.com/prod_select/summary/SMM665C/SMM665C_2125.pdf |
| |
| * Summit Microelectronics SMM764 |
| |
| Prefix: 'smm764' |
| |
| Addresses scanned: - |
| |
| Datasheet: |
| |
| http://www.summitmicro.com/prod_select/summary/SMM764/SMM764_2098.pdf |
| |
| * Summit Microelectronics SMM766, SMM766B |
| |
| Prefix: 'smm766' |
| |
| Addresses scanned: - |
| |
| Datasheets: |
| |
| http://www.summitmicro.com/prod_select/summary/SMM766/SMM766_2086.pdf |
| |
| http://www.summitmicro.com/prod_select/summary/SMM766B/SMM766B_2122.pdf |
| |
| Author: Guenter Roeck <linux@roeck-us.net> |
| |
| |
| Module Parameters |
| ----------------- |
| |
| * vref: int |
| Default: 1250 (mV) |
| |
| Reference voltage on VREF_ADC pin in mV. It should not be necessary to set |
| this parameter unless a non-default reference voltage is used. |
| |
| |
| Description |
| ----------- |
| |
| [From datasheet] The SMM665 is an Active DC Output power supply Controller |
| that monitors, margins and cascade sequences power. The part monitors six |
| power supply channels as well as VDD, 12V input, two general-purpose analog |
| inputs and an internal temperature sensor using a 10-bit ADC. |
| |
| Each monitored channel has its own high and low limits, plus a critical |
| limit. |
| |
| Support for SMM465, SMM764, and SMM766 has been implemented but is untested. |
| |
| |
| Usage Notes |
| ----------- |
| |
| This driver does not probe for devices, since there is no register which |
| can be safely used to identify the chip. You will have to instantiate |
| the devices explicitly. When instantiating the device, you have to specify |
| its configuration register address. |
| |
| Example: the following will load the driver for an SMM665 at address 0x57 |
| on I2C bus #1:: |
| |
| $ modprobe smm665 |
| $ echo smm665 0x57 > /sys/bus/i2c/devices/i2c-1/new_device |
| |
| |
| Sysfs entries |
| ------------- |
| |
| This driver uses the values in the datasheet to convert ADC register values |
| into the values specified in the sysfs-interface document. All attributes are |
| read only. |
| |
| Min, max, lcrit, and crit values are used by the chip to trigger external signals |
| and/or other activity. Triggered signals can include HEALTHY, RST, Power Off, |
| or Fault depending on the chip configuration. The driver reports values as lcrit |
| or crit if exceeding the limits triggers RST, Power Off, or Fault, and as min or |
| max otherwise. For details please see the SMM665 datasheet. |
| |
| For SMM465 and SMM764, values for Channel E and F are reported but undefined. |
| |
| ======================= ======================================================= |
| in1_input 12V input voltage (mV) |
| in2_input 3.3V (VDD) input voltage (mV) |
| in3_input Channel A voltage (mV) |
| in4_input Channel B voltage (mV) |
| in5_input Channel C voltage (mV) |
| in6_input Channel D voltage (mV) |
| in7_input Channel E voltage (mV) |
| in8_input Channel F voltage (mV) |
| in9_input AIN1 voltage (mV) |
| in10_input AIN2 voltage (mV) |
| |
| in1_min 12v input minimum voltage (mV) |
| in2_min 3.3V (VDD) input minimum voltage (mV) |
| in3_min Channel A minimum voltage (mV) |
| in4_min Channel B minimum voltage (mV) |
| in5_min Channel C minimum voltage (mV) |
| in6_min Channel D minimum voltage (mV) |
| in7_min Channel E minimum voltage (mV) |
| in8_min Channel F minimum voltage (mV) |
| in9_min AIN1 minimum voltage (mV) |
| in10_min AIN2 minimum voltage (mV) |
| |
| in1_max 12v input maximum voltage (mV) |
| in2_max 3.3V (VDD) input maximum voltage (mV) |
| in3_max Channel A maximum voltage (mV) |
| in4_max Channel B maximum voltage (mV) |
| in5_max Channel C maximum voltage (mV) |
| in6_max Channel D maximum voltage (mV) |
| in7_max Channel E maximum voltage (mV) |
| in8_max Channel F maximum voltage (mV) |
| in9_max AIN1 maximum voltage (mV) |
| in10_max AIN2 maximum voltage (mV) |
| |
| in1_lcrit 12v input critical minimum voltage (mV) |
| in2_lcrit 3.3V (VDD) input critical minimum voltage (mV) |
| in3_lcrit Channel A critical minimum voltage (mV) |
| in4_lcrit Channel B critical minimum voltage (mV) |
| in5_lcrit Channel C critical minimum voltage (mV) |
| in6_lcrit Channel D critical minimum voltage (mV) |
| in7_lcrit Channel E critical minimum voltage (mV) |
| in8_lcrit Channel F critical minimum voltage (mV) |
| in9_lcrit AIN1 critical minimum voltage (mV) |
| in10_lcrit AIN2 critical minimum voltage (mV) |
| |
| in1_crit 12v input critical maximum voltage (mV) |
| in2_crit 3.3V (VDD) input critical maximum voltage (mV) |
| in3_crit Channel A critical maximum voltage (mV) |
| in4_crit Channel B critical maximum voltage (mV) |
| in5_crit Channel C critical maximum voltage (mV) |
| in6_crit Channel D critical maximum voltage (mV) |
| in7_crit Channel E critical maximum voltage (mV) |
| in8_crit Channel F critical maximum voltage (mV) |
| in9_crit AIN1 critical maximum voltage (mV) |
| in10_crit AIN2 critical maximum voltage (mV) |
| |
| in1_crit_alarm 12v input critical alarm |
| in2_crit_alarm 3.3V (VDD) input critical alarm |
| in3_crit_alarm Channel A critical alarm |
| in4_crit_alarm Channel B critical alarm |
| in5_crit_alarm Channel C critical alarm |
| in6_crit_alarm Channel D critical alarm |
| in7_crit_alarm Channel E critical alarm |
| in8_crit_alarm Channel F critical alarm |
| in9_crit_alarm AIN1 critical alarm |
| in10_crit_alarm AIN2 critical alarm |
| |
| temp1_input Chip temperature |
| temp1_min Minimum chip temperature |
| temp1_max Maximum chip temperature |
| temp1_crit Critical chip temperature |
| temp1_crit_alarm Temperature critical alarm |
| ======================= ======================================================= |
