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IPMI: Add the document description of ipmi_get_smi_info 

Add the document description about how to use ipmi_get_smi_info.

Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
Zhao Yakui 2010-12-08 10:10:17 +08:00 committed by Len Brown
parent 16f4232ce4
commit 37bf501bdd
1 changed files with 27 additions and 0 deletions
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27
Documentation/IPMI.txt
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@ -533,6 +533,33 @@ completion during sending a panic event.
Other Pieces
------------
Get the detailed info related with the IPMI device
--------------------------------------------------
Some users need more detailed information about a device, like where
the address came from or the raw base device for the IPMI interface.
You can use the IPMI smi_watcher to catch the IPMI interfaces as they
come or go, and to grab the information, you can use the function
ipmi_get_smi_info(), which returns the following structure:
struct ipmi_smi_info {
enum ipmi_addr_src addr_src;
struct device *dev;
union {
struct {
void *acpi_handle;
} acpi_info;
} addr_info;
};
Currently special info for only for SI_ACPI address sources is
returned. Others may be added as necessary.
Note that the dev pointer is included in the above structure, and
assuming ipmi_smi_get_info returns success, you must call put_device
on the dev pointer.
Watchdog
--------