Re: Exposing WMI on Linux

[Anas Nashif <anas.nashif@intel.com>]

Len,
Ok, I will take a deep dive into this and try to provide answers to the
questions below, including how to use the data in management frameworks such as
CIMOMs.

Anas

Len Brown wrote:
> On Wednesday 30 May 2007 16:12, you wrote:
>> Here are some pointers as promised:
>>
>> http://developer.novell.com/wiki/index.php/OMC
>>
>> This is a Novell project with many providers dealing will many aspects
>> of the OS. They also provide RPMs for OpenSUSE and is the main source
>> for the OpenWBEM CIMOM binaries for SUSE.
>>
>> http://sblim.wiki.sourceforge.net/
>>
>> Is the IBM project dealing with instrumentation and home of the SFCB
>> CIMOM targeting embedded environments and only supports CMPI providers.
>>
>> http://sblim.wiki.sourceforge.net/ProviderCmpiSysfs is a sysfs provider.
>> Seems to be old but is a good example.
>>
>> http://openpegasus.org/
>>
>> This is the home of the OpenPeagsus CIMOM, supported by multiple
>> vendors.
>>
>> http://www.dmtf.org/standards/wbem/ is about the WBEM protocol. Also the
>> tutorial is good: http://www.wbemsolutions.com/tutorials/CIM/wbem.html
>>
>> http://cimple.org/ tries to make writing providers easy.
>>
> 
> Anas,
> We could use some help on how to expose WMI to user-space in Linux.
> (Then we could use some help on user-space using that interface:-)
> 
> Carlos has cooked up an ACPI-WMI mapping driver for Linux,
> and has two in-kernel platform specific drivers that want
> to talk to it (acer-laptop and HP Compaq TC1100 Tablets),
> and Matthew has been poking at an HP driver to use WMI
> to access some laptop functionas as well.
> 
> But nobody is thinking about how to hook this up
> to the user-space management infrastructure in Linux,
> and what the kernel/user interface to to best do
> that would be.
> 
> Carlos prototyped a sysfs I/F, but that doesn't seem to fit
> the WMI transaction model, so he's wondering if an ioctl
> I/F would be more appropriate where transaction consistency
> can be enforced by the driver, perhaps with a library
> on top of it.
> 
> Please advise.
> 
> thanks,
> -Len