A random sample of linux machines I have access to suggests that versions
of linux/input.h that define the structure also have EVIOCSABS defined but I
wouldn't guarantee that's fool proof either (but it might be a better test
than LINUX_VERSION_CODE).
I've checked a little more and EVIOCSABS appeared very shortly before
input_absinfo
around 2.5.27-2.5.30 so I reckon testing for EVIOCSABS is at least as good
as testing for 2.6.0, especially since that doesn't work on Fedora Core 3.
There's a proposed patch below.
Mark
Index: inputdrivers/linux_input/linux_input.c
===================================================================
RCS file: /cvs/directfb/DirectFB/inputdrivers/linux_input/linux_input.c,v
retrieving revision 1.58
diff -u -r1.58 linux_input.c
--- inputdrivers/linux_input/linux_input.c 10 Jan 2007 01:57:37 -0000 1.58
+++ inputdrivers/linux_input/linux_input.c 5 Feb 2007 17:00:20 -0000
@@ -110,7 +110,7 @@
#define test_bit(bit, array) ((array[LONG(bit)] >> OFF(bit)) & 1)
/* compat for 2.4.x kernel - just a compile fix */
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
+#ifndef EVIOCSABS
struct input_absinfo {
__s32 value;
__s32 minimum;
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