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Disable burst mode by default. Testing has shown that while it works on

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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"
This commit is contained in:
Nate Lawson 2007-03-18 01:03:03 +00:00
parent d7029f5e85
commit 675e5627d0
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=167671
1 changed files with 2 additions and 2 deletions
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4
sys/dev/acpica/acpi_ec.c
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@ -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);