diff options
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-driver-intel-xe-hwmon | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-driver-intel-xe-hwmon b/Documentation/ABI/testing/sysfs-driver-intel-xe-hwmon index 55ab45f669ac..0da739d9a816 100644 --- a/Documentation/ABI/testing/sysfs-driver-intel-xe-hwmon +++ b/Documentation/ABI/testing/sysfs-driver-intel-xe-hwmon @@ -251,6 +251,13 @@ Description: RO. Fan 2 speed in RPM. Only supported for particular Intel Xe graphics platforms. + On DG2 the driver always shows two fan channels, because the + FSC_READ_NUM_FANS command does not work on some cards. OEMs + decide how the fans map to tach channels, so two fans can share + one tach line. When that happens, the second channel + reads 0 RPM even though the fan is spinning. This is normal, not + a bug. + What: /sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/fan3_input Date: March 2025 KernelVersion: 6.16 |