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Diffstat (limited to '')
| -rw-r--r-- | Documentation/ABI/testing/dell-smbios-wmi | 34 |
1 files changed, 17 insertions, 17 deletions
diff --git a/Documentation/ABI/testing/dell-smbios-wmi b/Documentation/ABI/testing/dell-smbios-wmi index fc919ce16008..f58229084469 100644 --- a/Documentation/ABI/testing/dell-smbios-wmi +++ b/Documentation/ABI/testing/dell-smbios-wmi @@ -1,7 +1,7 @@ What: /dev/wmi/dell-smbios Date: November 2017 KernelVersion: 4.15 -Contact: "Mario Limonciello" <mario.limonciello@dell.com> +Contact: Dell.Client.Kernel@dell.com Description: Perform SMBIOS calls on supported Dell machines. through the Dell ACPI-WMI interface. @@ -10,29 +10,29 @@ Description: <uapi/linux/wmi.h> 1) To perform an SMBIOS call from userspace, you'll need to - first determine the minimum size of the calling interface - buffer for your machine. - Platforms that contain larger buffers can return larger - objects from the system firmware. - Commonly this size is either 4k or 32k. + first determine the minimum size of the calling interface + buffer for your machine. + Platforms that contain larger buffers can return larger + objects from the system firmware. + Commonly this size is either 4k or 32k. - To determine the size of the buffer read() a u64 dword from - the WMI character device /dev/wmi/dell-smbios. + To determine the size of the buffer read() a u64 dword from + the WMI character device /dev/wmi/dell-smbios. 2) After you've determined the minimum size of the calling - interface buffer, you can allocate a structure that represents - the structure documented above. + interface buffer, you can allocate a structure that represents + the structure documented above. 3) In the 'length' object store the size of the buffer you - determined above and allocated. + determined above and allocated. 4) In this buffer object, prepare as necessary for the SMBIOS - call you're interested in. Typically SMBIOS buffers have - "class", "select", and "input" defined to values that coincide - with the data you are interested in. - Documenting class/select/input values is outside of the scope - of this documentation. Check with the libsmbios project for - further documentation on these values. + call you're interested in. Typically SMBIOS buffers have + "class", "select", and "input" defined to values that coincide + with the data you are interested in. + Documenting class/select/input values is outside of the scope + of this documentation. Check with the libsmbios project for + further documentation on these values. 6) Run the call by using ioctl() as described in the header. |