usb-core bInterval quirk

[pandora-kernel.git] / include / linux / usb / quirks.h

diff --git a/include/linux/usb/quirks.h b/include/linux/usb/quirks.h
index 8eeeb87..142252c 100644 (file)
--- a/include/linux/usb/quirks.h
+++ b/include/linux/usb/quirks.h
@@ -30,6 +30,17 @@
    descriptor */
 #define USB_QUIRK_DELAY_INIT           0x00000040
 
+/*
+ * For high speed and super speed interupt endpoints, the USB 2.0 and
+ * USB 3.0 spec require the interval in microframes
+ * (1 microframe = 125 microseconds) to be calculated as
+ * interval = 2 ^ (bInterval-1).
+ *
+ * Devices with this quirk report their bInterval as the result of this
+ * calculation instead of the exponent variable used in the calculation.
+ */
+#define USB_QUIRK_LINEAR_UFRAME_INTR_BINTERVAL 0x00000080
+
 /* device generates spurious wakeup, ignore remote wakeup capability */
 #define USB_QUIRK_IGNORE_REMOTE_WAKEUP 0x00000200