Update of /cvsroot/linuxconsole/ruby/linux/Documentation/input
In directory usw-pr-cvs1:/tmp/cvs-serv10255
Modified Files:
ff.txt
Log Message:
Small updates.
Index: ff.txt
===================================================================
RCS file: /cvsroot/linuxconsole/ruby/linux/Documentation/input/ff.txt,v
retrieving revision 1.10
retrieving revision 1.11
diff -u -d -r1.10 -r1.11
--- ff.txt 4 Nov 2001 14:44:32 -0000 1.10
+++ ff.txt 8 Feb 2002 23:18:54 -0000 1.11
@@ -39,13 +39,10 @@
You then need to insert the modules into the following order:
% modprobe joydev
-% modprobe serport
+% modprobe serport # Only for serial
% modprobe iforce
% modprobe evdev
% ./inputattach -ifor $2 & # Only for serial
-For convenience, you may use the shell script named "ff" available from
-the cvs tree of the Linux Console Project at sourceforge. You can also
-retrieve it from http://www.esil.univ-mrs.fr/~jdeneux/projects/ff/.
If you are using USB, you don't need the inputattach step.
Please check that you have all the /dev/input entries needed:
@@ -82,19 +79,21 @@
#include <linux/input.h>
#include <sys/ioctl.h>
-unsigned long features[4];
+unsigned long features[1 + FF_MAX/sizeof(unsigned long)];
int ioctl(int file_descriptor, int request, unsigned long *features);
-"request" must be EVIOCGBIT(EV_FF, sizeof(unsigned long) * 4)
+"request" must be EVIOCGBIT(EV_FF, size of features array in bytes )
Returns the features supported by the device. features is a bitfield with the
following bits:
-- FF_X has an X axis (should allways be the case)
-- FF_Y has an Y axis (usually not the case for wheels)
+- FF_X has an X axis (usually joysticks)
+- FF_Y has an Y axis (usually joysticks)
+- FF_WHEEL has a wheel (usually sterring wheels)
- FF_CONSTANT can render constant force effects
- FF_PERIODIC can render periodic effects (sine, ramp, square...)
- FF_SPRING can simulate the presence of a spring
-- FF_FRICTION can simulate friction (aka drag, damper effect...)
+- FF_FRICTION can simulate friction
+- FF_DAMPER can simulate damper effects
- FF_RUMBLE rumble effects (normally the only effect supported by rumble
pads)
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