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authorLu Baolu <baolu.lu@linux.intel.com>2014-09-19 10:13:50 +0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2014-09-23 22:20:59 -0700
commitddbe1fca0bcb87ca8c199ea873a456ca8a948567 (patch)
tree763399fda347f95dff9fa00bc804286599528909 /include/linux/usb
parentusb3503: clarify what the registers 'PDS' and 'CFG1' really do (diff)
downloadlinux-dev-ddbe1fca0bcb87ca8c199ea873a456ca8a948567.tar.xz
linux-dev-ddbe1fca0bcb87ca8c199ea873a456ca8a948567.zip
USB: Add device quirk for ASUS T100 Base Station keyboard
This full-speed USB device generates spurious remote wakeup event as soon as USB_DEVICE_REMOTE_WAKEUP feature is set. As the result, Linux can't enter system suspend and S0ix power saving modes once this keyboard is used. This patch tries to introduce USB_QUIRK_IGNORE_REMOTE_WAKEUP quirk. With this quirk set, wakeup capability will be ignored during device configure. This patch could be back-ported to kernels as old as 2.6.39. Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/usb')
-rw-r--r--include/linux/usb/quirks.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/usb/quirks.h b/include/linux/usb/quirks.h
index ffe565c94743..a4abaeb3fb00 100644
--- a/include/linux/usb/quirks.h
+++ b/include/linux/usb/quirks.h
@@ -44,4 +44,7 @@
/* device can't handle device_qualifier descriptor requests */
#define USB_QUIRK_DEVICE_QUALIFIER 0x00000100
+/* device generates spurious wakeup, ignore remote wakeup capability */
+#define USB_QUIRK_IGNORE_REMOTE_WAKEUP 0x00000200
+
#endif /* __LINUX_USB_QUIRKS_H */