From bc552f77157d1bae79d0d3a5541da9579c39cb70 Mon Sep 17 00:00:00 2001 From: Jiri Slaby Date: Thu, 18 Oct 2007 23:40:24 -0700 Subject: 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 Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/phantom.h | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) (limited to 'include') 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 */ -- cgit v1.2.3-58-ga151