libudev: list - properly sort linked list not only the index

[elogind.git] / README

diff --git a/README b/README
index 7f0399e7110e9514e023e0d5fe91ed5c53f622de..148217d16a3e1b9f59e2612e5df053aa4669ab85 100644 (file)
--- a/README
+++ b/README
@@ -7,7 +7,7 @@ does not recommend replacing a distro's udev installation with the upstream
 version.
 
 The upstream udev project's set of default rules may require a most recent
-kernel release to work properly. This is currently version 2.6.31.
+kernel release to work properly. This is currently version 2.6.32.
 
 Tools and rules shipped by udev are not public API and may change at any time.
 Never call any private tool in /lib/udev from any external application; it might
@@ -16,8 +16,13 @@ by udevadm and libudev. Tools and rules in /lib/udev and the entire contents of
 the /dev/.udev directory are private to udev and do change whenever needed.
 
 Requirements:
-  - Version 2.6.27 of the Linux kernel with sysfs, procfs, signalfd, inotify,
-    unix domain sockets, networking and hotplug enabled:
+  - Version 2.6.34 of the Linux kernel with sysfs, procfs, signalfd, inotify,
+    unix domain sockets, networking and hotplug enabled
+
+  - Some architectures might need a later kernel, that supports accept4(),
+    or need to backport the accept4() syscall wiring in the kernel.
+
+  - These options are needed:
       CONFIG_HOTPLUG=y
       CONFIG_UEVENT_HELPER_PATH=""
       CONFIG_NET=y
@@ -25,9 +30,11 @@ Requirements:
       CONFIG_SYSFS=y
       CONFIG_SYSFS_DEPRECATED*=n
       CONFIG_PROC_FS=y
-      CONFIG_TMPFS=y
       CONFIG_INOTIFY_USER=y
       CONFIG_SIGNALFD=y
+
+  - These options might be needed:
+      CONFIG_TMPFS=y
       CONFIG_TMPFS_POSIX_ACL=y (user ACLs for device nodes)
       CONFIG_BLK_DEV_BSG=y (SCSI devices)
 
@@ -45,15 +52,15 @@ Requirements:
     be mounted at /sys. No other locations are supported by a standard
     udev installation.
 
-  - The system must have the following group names resolvable at udev startup:
+  - The default rule sset requires the following group names resolvable at udev startup:
       disk, cdrom, floppy, tape, audio, video, lp, tty, dialout, and kmem.
     Especially in LDAP setups, it is required that getgrnam() be able to resolve
     these group names with only the rootfs mounted and while no network is
     available.
 
-  - The 'udev extras' has the following dependencies:
+  - Some udev extras have external dependencies like:
       libacl, libglib2, libusb, usbutils, pciutils, and gperf.
-    These dependencies can be disabled with the --disable-extras configure option.
+    All these extras can be disabled with configure options.
 
 Setup:
   - At bootup, the /dev directory should get the 'devtmpfs' filesystem
@@ -74,12 +81,12 @@ Setup:
     restart or signal needed.
 
 Operation:
-  - Udev creates/removes device nodes in /dev, based on events the kernel
-    sends out on device creation/removal.
+  - Based on events the kernel sends out on device creation/removal, udev
+    creates/removes device nodes in the /dev directory.
 
   - All kernel events are matched against a set of specified rules, which
     possibly hook into the event processing and load required kernel
-    modules to setup devices. For all devices the kernel exports a major/minor
+    modules to set up devices. For all devices, the kernel exports a major/minor
     number; if needed, udev creates a device node with the default kernel
     name. If specified, udev applies permissions/ownership to the device
     node, creates additional symlinks pointing to the node, and executes
@@ -90,7 +97,8 @@ Operation:
       http://www.kernel.org/pub/linux/utils/kernel/hotplug/libudev/
       http://www.kernel.org/pub/linux/utils/kernel/hotplug/gudev/
 
-For more details about udev and udev rules see the udev(7) man page.
+For more details about udev and udev rules, see the udev man pages:
+      http://www.kernel.org/pub/linux/utils/kernel/hotplug/udev/
 
 Please direct any comment/question to the linux-hotplug mailing list at:
   linux-hotplug@vger.kernel.org