Merge branch 'work.iov_iter' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

[linux-2.6-microblaze.git] / Documentation / ABI / testing / sysfs-class-firmware-attributes

diff --git a/Documentation/ABI/testing/sysfs-class-firmware-attributes b/Documentation/ABI/testing/sysfs-class-firmware-attributes
index 0b43997..90fdf93 100644 (file)
--- a/Documentation/ABI/testing/sysfs-class-firmware-attributes
+++ b/Documentation/ABI/testing/sysfs-class-firmware-attributes
@@ -272,3 +272,14 @@ Description:
 
                Note that any changes to this attribute requires a reboot
                for changes to take effect.
+
+What:          /sys/class/firmware-attributes/*/attributes/debug_cmd
+Date:          July 2021
+KernelVersion: 5.14
+Contact:       Mark Pearson <markpearson@lenovo.com>
+Description:
+               This write only attribute can be used to send debug commands to the BIOS.
+               This should only be used when recommended by the BIOS vendor. Vendors may
+               use it to enable extra debug attributes or BIOS features for testing purposes.
+
+               Note that any changes to this attribute requires a reboot for changes to take effect.