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1What: /sys/firmware/efi/esrt/2Date: February 20153Contact: Peter Jones <pjones@redhat.com>4Description: Provides userland access to read the EFI System Resource Table5 (ESRT), a catalog of firmware for which can be updated with6 the UEFI UpdateCapsule mechanism described in section 7.5 of7 the UEFI Standard.8Users: fwupdate - https://github.com/rhinstaller/fwupdate9 10What: /sys/firmware/efi/esrt/fw_resource_count11Date: February 201512Contact: Peter Jones <pjones@redhat.com>13Description: The number of entries in the ESRT14 15What: /sys/firmware/efi/esrt/fw_resource_count_max16Date: February 201517Contact: Peter Jones <pjones@redhat.com>18Description: The maximum number of entries that /could/ be registered19 in the allocation the table is currently in. This is20 really only useful to the system firmware itself.21 22What: /sys/firmware/efi/esrt/fw_resource_version23Date: February 201524Contact: Peter Jones <pjones@redhat.com>25Description: The version of the ESRT structure provided by the firmware.26 27What: /sys/firmware/efi/esrt/entries/entry<N>/28Date: February 201529Contact: Peter Jones <pjones@redhat.com>30Description: Each ESRT entry is identified by a GUID, and each gets a31 subdirectory under entries/ .32 example: /sys/firmware/efi/esrt/entries/entry0/33 34What: /sys/firmware/efi/esrt/entries/entry<N>/fw_type35Date: February 201536Contact: Peter Jones <pjones@redhat.com>37Description: What kind of firmware entry this is:38 39 == ===============40 0 Unknown41 1 System Firmware42 2 Device Firmware43 3 UEFI Driver44 == ===============45 46What: /sys/firmware/efi/esrt/entries/entry<N>/fw_class47Date: February 201548Contact: Peter Jones <pjones@redhat.com>49Description: This is the entry's guid, and will match the directory name.50 51What: /sys/firmware/efi/esrt/entries/entry<N>/fw_version52Date: February 201553Contact: Peter Jones <pjones@redhat.com>54Description: The version of the firmware currently installed. This is a55 32-bit unsigned integer.56 57What: /sys/firmware/efi/esrt/entries/entry<N>/lowest_supported_fw_version58Date: February 201559Contact: Peter Jones <pjones@redhat.com>60Description: The lowest version of the firmware that can be installed.61 62What: /sys/firmware/efi/esrt/entries/entry<N>/capsule_flags63Date: February 201564Contact: Peter Jones <pjones@redhat.com>65Description: Flags that must be passed to UpdateCapsule()66 67What: /sys/firmware/efi/esrt/entries/entry<N>/last_attempt_version68Date: February 201569Contact: Peter Jones <pjones@redhat.com>70Description: The last firmware version for which an update was attempted.71 72What: /sys/firmware/efi/esrt/entries/entry<N>/last_attempt_status73Date: February 201574Contact: Peter Jones <pjones@redhat.com>75Description: The result of the last firmware update attempt for the76 firmware resource entry.77 78 == ======================79 0 Success80 1 Insufficient resources81 2 Incorrect version82 3 Invalid format83 4 Authentication error84 5 AC power event85 6 Battery power event86 == ======================87 88