+
+What: "acpi=ht" boot option
+When: 2.6.35
+Why: Useful in 2003, implementation is a hack.
+ Generally invoked by accident today.
+ Seen as doing more harm than good.
+Who: Len Brown <len.brown@intel.com>
+
+----------------------------
+
+What: video4linux /dev/vtx teletext API support
+When: 2.6.35
+Files: drivers/media/video/saa5246a.c drivers/media/video/saa5249.c
+ include/linux/videotext.h
+Why: The vtx device nodes have been superseded by vbi device nodes
+ for many years. No applications exist that use the vtx support.
+ Of the two i2c drivers that actually support this API the saa5249
+ has been impossible to use for a year now and no known hardware
+ that supports this device exists. The saa5246a is theoretically
+ supported by the old mxb boards, but it never actually worked.
+
+ In summary: there is no hardware that can use this API and there
+ are no applications actually implementing this API.
+
+ The vtx support still reserves minors 192-223 and we would really
+ like to reuse those for upcoming new functionality. In the unlikely
+ event that new hardware appears that wants to use the functionality
+ provided by the vtx API, then that functionality should be build
+ around the sliced VBI API instead.
+Who: Hans Verkuil <hverkuil@xs4all.nl>