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authornjl <njl@FreeBSD.org>2007-03-18 01:03:03 +0000
committernjl <njl@FreeBSD.org>2007-03-18 01:03:03 +0000
commita8ba35fb0023bb456954993d3c55712666b50d13 (patch)
treeea374fb710f339370e5ef446e4c61c73ffd4a4c6 /sys/dev/acpica/acpi_ec.c
parent29d911985ba7497e528d908b71cfe7cde2e59515 (diff)
downloadFreeBSD-src-a8ba35fb0023bb456954993d3c55712666b50d13.zip
FreeBSD-src-a8ba35fb0023bb456954993d3c55712666b50d13.tar.gz
Disable burst mode by default. Testing has shown that while it works on
most systems, it causes the EC not to respond for some Acer and Compaq/HP laptops. This is the default value for Linux also. For systems that need it, burst mode can be enabled via the tunable/sysctl: debug.acpi.ec.burst="1"
Diffstat (limited to 'sys/dev/acpica/acpi_ec.c')
-rw-r--r--sys/dev/acpica/acpi_ec.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/sys/dev/acpica/acpi_ec.c b/sys/dev/acpica/acpi_ec.c
index 96669b3..d099e01 100644
--- a/sys/dev/acpica/acpi_ec.c
+++ b/sys/dev/acpica/acpi_ec.c
@@ -303,9 +303,9 @@ ACPI_SERIAL_DECL(ec, "ACPI embedded controller");
SYSCTL_DECL(_debug_acpi);
SYSCTL_NODE(_debug_acpi, OID_AUTO, ec, CTLFLAG_RD, NULL, "EC debugging");
-static int ec_burst_mode = TRUE;
+static int ec_burst_mode;
TUNABLE_INT("debug.acpi.ec.burst", &ec_burst_mode);
-SYSCTL_INT(_debug_acpi_ec, OID_AUTO, burst, CTLFLAG_RW, &ec_burst_mode, TRUE,
+SYSCTL_INT(_debug_acpi_ec, OID_AUTO, burst, CTLFLAG_RW, &ec_burst_mode, 0,
"Enable use of burst mode (faster for nearly all systems)");
static int ec_poll_time = EC_POLL_TIME;
TUNABLE_INT("debug.acpi.ec.poll_time", &ec_poll_time);
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