A patch queued into the hwmon-next branch extends the RASPBERRYPI-HWMON Linux driver to expose voltage measurements from Raspberry Pi firmware to user-space via standard HWMON sysfs interfaces. The exposed inputs include core voltage (in0_input), SDRAM controller voltage (in1_input), SDRAM I/O voltage (in2_input), and SDRAM PHY voltage (in3_input), all reported in millivolts. The change is expected to land in Linux 7.2 during the mid-June merge window.
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