diff options
Diffstat (limited to 'drivers/misc/thinkpad_acpi.c')
| -rw-r--r-- | drivers/misc/thinkpad_acpi.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/misc/thinkpad_acpi.c b/drivers/misc/thinkpad_acpi.c index 322ba25b479..56a21e6b80a 100644 --- a/drivers/misc/thinkpad_acpi.c +++ b/drivers/misc/thinkpad_acpi.c @@ -3182,6 +3182,12 @@ static int __init brightness_init(struct ibm_init_struct *iibm) mutex_init(&brightness_mutex); + if (!brightness_enable) { + dbg_printk(TPACPI_DBG_INIT, + "brightness support disabled by module parameter\n"); + return 1; + } + if (!brightness_mode) { if (thinkpad_id.vendor == PCI_VENDOR_ID_LENOVO) brightness_mode = 2; @@ -4803,6 +4809,9 @@ module_param_named(fan_control, fan_control_allowed, bool, 0); static int brightness_mode; module_param_named(brightness_mode, brightness_mode, int, 0); +static unsigned int brightness_enable = 2; /* 2 = auto, 0 = no, 1 = yes */ +module_param(brightness_enable, uint, 0); + static unsigned int hotkey_report_mode; module_param(hotkey_report_mode, uint, 0); |