Author: hselasky
Date: Wed Feb 6 11:16:18 2013
New Revision: 246397
URL: http://svnweb.freebsd.org/changeset/base/246397
Log:
Make sure that all mouse buttons are released when clients
using /dev/consolectl close. This fixes a problem where if
a USB mouse is detached while a button is pressed, that
button is never released.
MFC after: 1 week
Modified:
head/sys/dev/syscons/syscons.c
Modified: head/sys/dev/syscons/syscons.c
==============================================================================
--- head/sys/dev/syscons/syscons.c Wed Feb 6 11:10:41 2013
(r246396)
+++ head/sys/dev/syscons/syscons.c Wed Feb 6 11:16:18 2013
(r246397)
@@ -253,11 +253,13 @@ static struct ttydevsw sc_ttydevsw = {
};
static d_ioctl_t consolectl_ioctl;
+static d_close_t consolectl_close;
static struct cdevsw consolectl_devsw = {
.d_version = D_VERSION,
- .d_flags = D_NEEDGIANT,
+ .d_flags = D_NEEDGIANT | D_TRACKCLOSE,
.d_ioctl = consolectl_ioctl,
+ .d_close = consolectl_close,
.d_name = "consolectl",
};
@@ -1561,6 +1563,23 @@ consolectl_ioctl(struct cdev *dev, u_lon
return sctty_ioctl(dev->si_drv1, cmd, data, td);
}
+static int
+consolectl_close(struct cdev *dev, int flags, int mode, struct thread *td)
+{
+#ifndef SC_NO_SYSMOUSE
+ mouse_info_t info;
+ memset(&info, 0, sizeof(info));
+ info.operation = MOUSE_ACTION;
+
+ /*
+ * Make sure all buttons are released when moused and other
+ * console daemons exit, so that no buttons are left pressed.
+ */
+ (void) sctty_ioctl(dev->si_drv1, CONS_MOUSECTL, (caddr_t)&info, td);
+#endif
+ return (0);
+}
+
static void
sc_cnprobe(struct consdev *cp)
{
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