dcfbd31ef4
Dynamic BIOS SAR driver exposing dynamic SAR information from BIOS The Dynamic SAR (Specific Absorption Rate) driver uses ACPI DSM (Device Specific Method) to communicate with BIOS and retrieve dynamic SAR information and change notifications. The driver uses sysfs to expose this data to userspace via read and notify. Sysfs interface is documented in detail under: Documentation/ABI/testing/sysfs-driver-intc_sar Signed-off-by: Shravan S <s.shravan@intel.com> Link: https://lore.kernel.org/r/20210723211452.27995-2-s.shravan@intel.com Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
15 lines
836 B
Plaintext
15 lines
836 B
Plaintext
config INTEL_SAR_INT1092
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tristate "Intel Specific Absorption Rate Driver"
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depends on ACPI
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help
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This driver helps to limit the exposure of human body to RF frequency by
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providing information to userspace application that will inform the Intel
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M.2 modem to regulate the RF power based on SAR data obtained from the
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sensors captured in the BIOS. ACPI interface exposes this data from the BIOS
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to SAR driver. The front end application in userspace will interact with SAR
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driver to obtain information like the device mode, Antenna index, baseband index,
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SAR table index and use available communication like MBIM interface to enable
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data communication to modem for RF power regulation. Enable this config when
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given platform needs to support "Dynamic SAR" configuration for a modem available
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on the platform.
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