Author: rpaulo
Date: Fri Oct 24 21:08:36 2014
New Revision: 273607
URL: https://svnweb.freebsd.org/changeset/base/273607
Log:
Add a sysctl to control the HPET allow_write behaviour.
Requested by: kib
Modified:
head/sys/dev/acpica/acpi_hpet.c
Modified: head/sys/dev/acpica/acpi_hpet.c
==============================================================================
--- head/sys/dev/acpica/acpi_hpet.c Fri Oct 24 21:08:02 2014
(r273606)
+++ head/sys/dev/acpica/acpi_hpet.c Fri Oct 24 21:08:36 2014
(r273607)
@@ -760,6 +760,11 @@ hpet_attach(device_t dev)
OID_AUTO, "mmap_allow",
CTLFLAG_RW, &sc->mmap_allow, 0,
"Allow userland to memory map HPET");
+ SYSCTL_ADD_INT(device_get_sysctl_ctx(dev),
+ SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
+ OID_AUTO, "mmap_allow_write",
+ CTLFLAG_RW, &sc->mmap_allow_write, 0,
+ "Allow userland write to the HPET register space");
} else
device_printf(dev, "could not create /dev/hpet%d\n",
device_get_unit(dev));
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