Input: tsdev - schedule removal

Compaq touchscreen emulation (drivers/input/tsdev.c) is old,
was obsolete when it was written by the authors own admission
and much better userspace solutions like tslib now exist.
The name is also confusing.

Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
Acked-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

2 files changed, 19 insertions, 0 deletions

diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt
index fa844fd7bded..5d140dc0ea2b 100644
--- a/Documentation/feature-removal-schedule.txt
+++ b/Documentation/feature-removal-schedule.txt
@@ -312,3 +312,18 @@ Why:    In kernel tree version of driver is unmaintained. Sk98lin driver
         replaced by the skge driver. 
 Who:    Stephen Hemminger <shemminger@osdl.org>
 
+---------------------------
+
+What:   Compaq touchscreen device emulation
+When:   Oct 2007
+Files:  drivers/input/tsdev.c
+Why:    The code says it was obsolete when it was written in 2001.
+        tslib is a userspace library which does anything tsdev can do and
+        much more besides in userspace where this code belongs. There is no
+        longer any need for tsdev and applications should have converted to
+        use tslib by now.
+        The name "tsdev" is also extremely confusing and lots of people have
+        it loaded when they don't need/use it.
+Who:    Richard Purdie <rpurdie@rpsys.net>
+
+---------------------------
diff --git a/drivers/input/tsdev.c b/drivers/input/tsdev.c
index a730c461227f..0300dca8591d 100644
--- a/drivers/input/tsdev.c
+++ b/drivers/input/tsdev.c
@@ -151,6 +151,10 @@ static int tsdev_open(struct inode *inode, struct file *file)
         int i = iminor(inode) - TSDEV_MINOR_BASE;
         struct tsdev_list *list;
 
+        printk(KERN_WARNING "tsdev (compaq touchscreen emulation) is scheduled "
+                "for removal.\nSee Documentation/feature-removal-schedule.txt "
+                "for details.\n");
+
         if (i >= TSDEV_MINORS || !tsdev_table[i & TSDEV_MINOR_MASK])
                 return -ENODEV;