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Misc: phantom, improved data passing

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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>
This commit is contained in:
Jiri Slaby 2007-10-18 23:40:24 -07:00 • committed by Linus Torvalds
parent b2afe33170
commit bc552f7715
2 changed files with 81 additions and 19 deletions
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6
include/linux/phantom.h
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@ -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 */