AcoSail/kernel_optimize_test
8
0
Fork 0
forked from luck/tmp_suning_uos_patched
Code Pull Requests Activity

ACPI: work around duplicate name "VID" problem on T61

Browse Source 
This can only fix the problem that more than one video bus device
have the same AML name "VID".
ie. the proc I/F for the second "VID" video bus device is located under
/proc/acpi/video/VID1/...

As this is really rare and the ACPI proc I/F is a legacy feature that
we are planning to remove.
We won't provide a generic solution for this problem.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
Zhang Rui 2007-08-25 02:23:31 -04:00 committed by Len Brown
parent 1a8f46100b
commit e6d9da1de0
1 changed files with 8 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/acpi/video.c
View File

@ -1833,6 +1833,7 @@ static void acpi_video_device_notify(acpi_handle handle, u32 event, void *data)
return;
}
static int instance;
static int acpi_video_bus_add(struct acpi_device *device)
{
int result = 0;
@ -1847,6 +1848,13 @@ static int acpi_video_bus_add(struct acpi_device *device)
if (!video)
return -ENOMEM;
/* a hack to fix the duplicate name "VID" problem on T61 */
if (!strcmp(device->pnp.bus_id, "VID")) {
if (instance)
device->pnp.bus_id[3] = '0' + instance;
instance ++;
}
video->device = device;
strcpy(acpi_device_name(device), ACPI_VIDEO_BUS_NAME);
strcpy(acpi_device_class(device), ACPI_VIDEO_CLASS);