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authorHenrique de Moraes Holschuh <hmh@hmh.eng.br>2007-04-24 11:48:20 -0300
committerLen Brown <len.brown@intel.com>2007-04-25 02:00:27 -0400
commit7d5a015eece8be9186d3613d595643a520555e33 (patch)
tree7ce09f4b768e2d471daa6a26ef7336965972004f /drivers/misc
parentb616004c70dd7f60a1477c3e9d6fddd00ee1fa37 (diff)
ACPI: thinkpad-acpi: update brightness sysfs interface support
Update the brightness sysfs interface (done through the backlight class) to be in line with the rest of the thinkpad-acpi driver. This renames the incorrect, un-obvious, and clash-prone name of "ibm" for the backlight device to a much more fitting and descriptive "thinkpad_screen". This is something I wanted to do for quite a while... Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br> Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/misc')
-rw-r--r--drivers/misc/thinkpad_acpi.c5
-rw-r--r--drivers/misc/thinkpad_acpi.h2
2 files changed, 5 insertions, 2 deletions
diff --git a/drivers/misc/thinkpad_acpi.c b/drivers/misc/thinkpad_acpi.c
index ba749df189a..c0a023cc5de 100644
--- a/drivers/misc/thinkpad_acpi.c
+++ b/drivers/misc/thinkpad_acpi.c
@@ -2414,8 +2414,9 @@ static int __init brightness_init(struct ibm_init_struct *iibm)
if (b < 0)
return b;
- ibm_backlight_device = backlight_device_register("ibm", NULL, NULL,
- &ibm_backlight_data);
+ ibm_backlight_device = backlight_device_register(
+ TPACPI_BACKLIGHT_DEV_NAME, NULL, NULL,
+ &ibm_backlight_data);
if (IS_ERR(ibm_backlight_device)) {
printk(IBM_ERR "Could not register backlight device\n");
return PTR_ERR(ibm_backlight_device);
diff --git a/drivers/misc/thinkpad_acpi.h b/drivers/misc/thinkpad_acpi.h
index 2fe4d61cc27..8348fc65300 100644
--- a/drivers/misc/thinkpad_acpi.h
+++ b/drivers/misc/thinkpad_acpi.h
@@ -296,6 +296,8 @@ static int bluetooth_write(char *buf);
* Brightness (backlight) subdriver
*/
+#define TPACPI_BACKLIGHT_DEV_NAME "thinkpad_screen"
+
static struct backlight_device *ibm_backlight_device;
static int brightness_offset = 0x31;