[PATCH] dynticks: fix hrtimer rounding error in next_timer_interrupt

[linux-2.6-omap-h63xx.git] / Documentation / IPMI.txt

diff --git a/Documentation/IPMI.txt b/Documentation/IPMI.txt
index 9101cbf2d8839843d0be33459563695714c84ff4..24dc3fcf15948e8a9ed93043cf46c0e81f929c36 100644 (file)
--- a/Documentation/IPMI.txt
+++ b/Documentation/IPMI.txt
@@ -365,6 +365,7 @@ You can change this at module load time (for a module) with:
        regshifts=<shift1>,<shift2>,...
        slave_addrs=<addr1>,<addr2>,...
        force_kipmid=<enable1>,<enable2>,...
        regshifts=<shift1>,<shift2>,...
        slave_addrs=<addr1>,<addr2>,...
        force_kipmid=<enable1>,<enable2>,...

+       unload_when_empty=[0|1]

 
 Each of these except si_trydefaults is a list, the first item for the
 first interface, second item for the second interface, etc.
 
 Each of these except si_trydefaults is a list, the first item for the
 first interface, second item for the second interface, etc.


@@ -416,6 +417,11 @@ by the driver, but systems with broken interrupts might need an enable,
 or users that don't want the daemon (don't need the performance, don't
 want the CPU hit) can disable it.
 
 or users that don't want the daemon (don't need the performance, don't
 want the CPU hit) can disable it.
 

+If unload_when_empty is set to 1, the driver will be unloaded if it
+doesn't find any interfaces or all the interfaces fail to work.  The
+default is one.  Setting to 0 is useful with the hotmod, but is
+obviously only useful for modules.
+

 When compiled into the kernel, the parameters can be specified on the
 kernel command line as:
 
 When compiled into the kernel, the parameters can be specified on the
 kernel command line as:
 


@@ -441,6 +447,25 @@ have high-res timers enabled in the kernel and you don't have
 interrupts enabled, the driver will run VERY slowly.  Don't blame me,
 these interfaces suck.
 
 interrupts enabled, the driver will run VERY slowly.  Don't blame me,
 these interfaces suck.
 

+The driver supports a hot add and remove of interfaces.  This way,
+interfaces can be added or removed after the kernel is up and running.
+This is done using /sys/modules/ipmi_si/hotmod, which is a write-only
+parameter.  You write a string to this interface.  The string has the
+format:
+   <op1>[:op2[:op3...]]
+The "op"s are:
+   add|remove,kcs|bt|smic,mem|i/o,<address>[,<opt1>[,<opt2>[,...]]]
+You can specify more than one interface on the line.  The "opt"s are:
+   rsp=<regspacing>
+   rsi=<regsize>
+   rsh=<regshift>
+   irq=<irq>
+   ipmb=<ipmb slave addr>
+and these have the same meanings as discussed above.  Note that you
+can also use this on the kernel command line for a more compact format
+for specifying an interface.  Note that when removing an interface,
+only the first three parameters (si type, address type, and address)
+are used for the comparison.  Any options are ignored for removing.

 
 The SMBus Driver
 ----------------
 
 The SMBus Driver
 ----------------