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authorJiri Slaby <jirislaby@gmail.com>2007-10-19 10:40:24 +0400
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-10-19 22:53:41 +0400
commitbc552f77157d1bae79d0d3a5541da9579c39cb70 (patch)
tree3874dee446b831d1ef6fa3ff81ce941138604b0a /include/linux/phantom.h
parentb2afe3317099afe0843e3cece6be60664e6033ea (diff)
downloadlinux-bc552f77157d1bae79d0d3a5541da9579c39cb70.tar.xz
Misc: phantom, improved data passing
This new version guarantees amb_bit switch in small enough intervals, so that the device won't stop working in the middle of a movement anymore. However it preserves old (openhaptics) functionality. Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/phantom.h')
-rw-r--r--include/linux/phantom.h6
1 files changed, 5 insertions, 1 deletions
diff --git a/include/linux/phantom.h b/include/linux/phantom.h
index d3ebbfae6903..96f4048a6cc3 100644
--- a/include/linux/phantom.h
+++ b/include/linux/phantom.h
@@ -30,7 +30,11 @@ struct phm_regs {
#define PHN_SET_REG _IOW (PH_IOC_MAGIC, 1, struct phm_reg *)
#define PHN_GET_REGS _IOWR(PH_IOC_MAGIC, 2, struct phm_regs *)
#define PHN_SET_REGS _IOW (PH_IOC_MAGIC, 3, struct phm_regs *)
-#define PH_IOC_MAXNR 3
+/* this ioctl tells the driver, that the caller is not OpenHaptics and might
+ * use improved registers update (no more phantom switchoffs when using
+ * libphantom) */
+#define PHN_NOT_OH _IO (PH_IOC_MAGIC, 4)
+#define PH_IOC_MAXNR 4
#define PHN_CONTROL 0x6 /* control byte in iaddr space */
#define PHN_CTL_AMP 0x1 /* switch after torques change */