path: root/Documentation/ABI/stable
diff options
authorGreg Kroah-Hartman <>2006-04-27 14:10:12 -0700
committerGreg Kroah-Hartman <>2006-06-21 12:40:47 -0700
commitc18f6365fdbaf30611a8822afcd7097865dcaa32 (patch)
treefb136fffab80d3022edcc4fc17b3da789eb7b838 /Documentation/ABI/stable
parent183bd5b3da82b80920c30c4772222df8027fc364 (diff)
[PATCH] Add kernel<->userspace ABI stability documentation
Signed-off-by: Kay Sievers <> Signed-off-by: Greg Kroah-Hartman <>
Diffstat (limited to 'Documentation/ABI/stable')
2 files changed, 40 insertions, 0 deletions
diff --git a/Documentation/ABI/stable/syscalls b/Documentation/ABI/stable/syscalls
new file mode 100644
index 000000000000..c3ae3e7d6a0c
--- /dev/null
+++ b/Documentation/ABI/stable/syscalls
@@ -0,0 +1,10 @@
+What: The kernel syscall interface
+ This interface matches much of the POSIX interface and is based
+ on it and other Unix based interfaces. It will only be added to
+ over time, and not have things removed from it.
+ Note that this interface is different for every architecture
+ that Linux supports. Please see the architecture-specific
+ documentation for details on the syscall numbers that are to be
+ mapped to each syscall.
diff --git a/Documentation/ABI/stable/sysfs-module b/Documentation/ABI/stable/sysfs-module
new file mode 100644
index 000000000000..75be43118335
--- /dev/null
+++ b/Documentation/ABI/stable/sysfs-module
@@ -0,0 +1,30 @@
+What: /sys/module
+ The /sys/module tree consists of the following structure:
+ /sys/module/MODULENAME
+ The name of the module that is in the kernel. This
+ module name will show up either if the module is built
+ directly into the kernel, or if it is loaded as a
+ dyanmic module.
+ /sys/module/MODULENAME/parameters
+ This directory contains individual files that are each
+ individual parameters of the module that are able to be
+ changed at runtime. See the individual module
+ documentation as to the contents of these parameters and
+ what they accomplish.
+ Note: The individual parameter names and values are not
+ considered stable, only the fact that they will be
+ placed in this location within sysfs. See the
+ individual driver documentation for details as to the
+ stability of the different parameters.
+ /sys/module/MODULENAME/refcnt
+ If the module is able to be unloaded from the kernel, this file
+ will contain the current reference count of the module.
+ Note: If the module is built into the kernel, or if the
+ CONFIG_MODULE_UNLOAD kernel configuration value is not enabled,
+ this file will not be present.