lkml.org 
[lkml]   [2011]   [Feb]   [26]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 05/14] asus-wmi: handle "unknown status" bit
Date
Signed-off-by: Corentin Chary <corentincj@iksaif.net>
---
drivers/platform/x86/asus-wmi.c | 6 ++++++
1 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c
index d0f0931..39ce3c1 100644
--- a/drivers/platform/x86/asus-wmi.c
+++ b/drivers/platform/x86/asus-wmi.c
@@ -92,6 +92,7 @@ MODULE_LICENSE("GPL");

/* DSTS masks */
#define ASUS_WMI_DSTS_STATUS_BIT 0x00000001
+#define ASUS_WMI_DSTS_UNKNOWN_BIT 0x00000002
#define ASUS_WMI_DSTS_PRESENCE_BIT 0x00010000
#define ASUS_WMI_DSTS_BRIGHTNESS_MASK 0x000000FF
#define ASUS_WMI_DSTS_MAX_BRIGTH_MASK 0x0000FF00
@@ -270,6 +271,11 @@ static int asus_wmi_get_devstate_bits(u32 dev_id, u32 mask)
if (!(retval & ASUS_WMI_DSTS_PRESENCE_BIT))
return -ENODEV;

+ if (mask == ASUS_WMI_DSTS_STATUS_BIT) {
+ if (retval & ASUS_WMI_DSTS_UNKNOWN_BIT)
+ return -ENODEV;
+ }
+
return retval & mask;
}

--
1.7.4


\
 
 \ /
  Last update: 2011-02-26 10:25    [W:0.065 / U:2.204 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site