diff options
| -rw-r--r-- | man/evdev.man | 8 | ||||
| -rw-r--r-- | src/evdev.c | 35 | ||||
| -rw-r--r-- | src/evdev.h | 2 |
3 files changed, 30 insertions, 15 deletions
diff --git a/man/evdev.man b/man/evdev.man index 3b0f3b1..ee126f1 100644 --- a/man/evdev.man +++ b/man/evdev.man @@ -12,6 +12,7 @@ evdev \- Generic Linux input driver .BI " Option \*qPath\*q \*q" path \*q .BI " Option \*qEmulate3Buttons\*q \*q" True \*q .BI " Option \*qEmulate3Timeout\*q \*q" 50 \*q +.BI " Option \*qGrabDevice\*q \*q" False \*q \ \ ... .B EndSection .fi @@ -120,6 +121,13 @@ emulation mode. Button number is mapped to the negative Y axis motion and button number .I N2 is mapped to the positive Y axis motion. Default: "4 5" +.TP 7 +.BI "Option \*qGrabDevice\*q \*q" boolean \*q +Force a grab on the event device. Doing so will ensure that no other driver +can initialise the same device and it will also stop the device from sending +events to /dev/kbd or /dev/input/mice. Events from this device will not be +sent to virtual devices (e.g. rfkill or the Macintosh mouse button emulation). +Default disabled. .SH AUTHORS Kristian Høgsberg. .SH "SEE ALSO" diff --git a/src/evdev.c b/src/evdev.c index 38a211b..b2a79a2 100644 --- a/src/evdev.c +++ b/src/evdev.c @@ -942,23 +942,24 @@ EvdevProc(DeviceIntPtr device, int what) return EvdevInit(device); case DEVICE_ON: - if (!pEvdev->kernel24 && ioctl(pInfo->fd, EVIOCGRAB, (void *)1)) + if (pEvdev->grabDevice && ioctl(pInfo->fd, EVIOCGRAB, (void *)1)) + { xf86Msg(X_WARNING, "%s: Grab failed (%s)\n", pInfo->name, strerror(errno)); - if (errno != ENODEV) + if (errno == ENODEV) + return !Success; + } + xf86AddEnabledDevice(pInfo); + if (pEvdev->flags & EVDEV_BUTTON_EVENTS) { - xf86AddEnabledDevice(pInfo); - if (pEvdev->flags & EVDEV_BUTTON_EVENTS) - { - EvdevMBEmuPreInit(pInfo); - EvdevWheelEmuPreInit(pInfo); - } - device->public.on = TRUE; + EvdevMBEmuPreInit(pInfo); + EvdevWheelEmuPreInit(pInfo); } + device->public.on = TRUE; break; case DEVICE_OFF: - if (!pEvdev->kernel24 && ioctl(pInfo->fd, EVIOCGRAB, (void *)0)) + if (pEvdev->grabDevice && ioctl(pInfo->fd, EVIOCGRAB, (void *)0)) xf86Msg(X_WARNING, "%s: Release failed (%s)\n", pInfo->name, strerror(errno)); xf86RemoveEnabledDevice(pInfo); @@ -982,17 +983,19 @@ EvdevProbe(InputInfoPtr pInfo) long rel_bitmask[NBITS(REL_MAX)]; long abs_bitmask[NBITS(ABS_MAX)]; int i, has_axes, has_keys, num_buttons; + int kernel24 = 0; EvdevPtr pEvdev = pInfo->private; - if (ioctl(pInfo->fd, EVIOCGRAB, (void *)1)) { + if (pEvdev->grabDevice && ioctl(pInfo->fd, EVIOCGRAB, (void *)1)) { if (errno == EINVAL) { /* keyboards are unsafe in 2.4 */ - pEvdev->kernel24 = 1; + kernel24 = 1; + pEvdev->grabDevice = 0; } else { xf86Msg(X_ERROR, "Grab failed. Device already configured?\n"); return 1; } - } else { + } else if (pEvdev->grabDevice) { ioctl(pInfo->fd, EVIOCGRAB, (void *)0); } @@ -1068,7 +1071,7 @@ EvdevProbe(InputInfoPtr pInfo) } if (has_keys) { - if (pEvdev->kernel24) { + if (kernel24) { xf86Msg(X_INFO, "%s: Kernel < 2.6 is too old, ignoring keyboard\n", pInfo->name); } else { @@ -1152,6 +1155,10 @@ EvdevPreInit(InputDriverPtr drv, IDevPtr dev, int flags) return NULL; } + /* Grabbing the event device stops in-kernel event forwarding. In other + words, it disables rfkill and the "Macintosh mouse button emulation". */ + pEvdev->grabDevice = xf86CheckBoolOption(dev->commonOptions, "GrabDevice", 0); + EvdevInitButtonMapping(pInfo); pEvdev->noXkb = noXkbExtension; diff --git a/src/evdev.h b/src/evdev.h index a0a336a..a43ddbe 100644 --- a/src/evdev.h +++ b/src/evdev.h @@ -50,7 +50,7 @@ typedef struct { } WheelAxis, *WheelAxisPtr; typedef struct { - int kernel24; + int grabDevice; /* grab the event device? */ int screen; int min_x, min_y, max_x, max_y; int abs_x, abs_y, old_x, old_y; |