[debian-edu-commits] r78724 - trunk/src/hw-support-handler

[pere at alioth.debian.org]

Author: pere
Date: 2013-01-13 08:12:19 +0000 (Sun, 13 Jan 2013)
New Revision: 78724

Modified:
   trunk/src/hw-support-handler/README
Log:
Add estimate on the number of HW specific packages.

Modified: trunk/src/hw-support-handler/README
===================================================================
--- trunk/src/hw-support-handler/README	2013-01-13 05:47:40 UTC (rev 78723)
+++ trunk/src/hw-support-handler/README	2013-01-13 08:12:19 UTC (rev 78724)
@@ -39,6 +39,22 @@
 The machanism used to install packages can be PackageKit or something
 else.
 
+How many packages are hardware dependent?
+-----------------------------------------
+
+It is hard to guess.  One way to measure it is to see how many
+packages provide udev rules, as these probably affect hardware
+devices.  For example using apt-file in unstable 2013-01-12 give this
+result:
+
+  % apt-file search /lib/udev/rules.d|cut -d: -f1|sort -u|wc -l
+  136
+  %
+
+Another is to look at Ubuntu, and how many packages have a Modaliases
+entry in the Packages files.  For Ubuntu Quantal it is around 25
+packages.
+
 The discover based implementation
 ---------------------------------