2 * This file holds the definitions of quirks found in USB devices.
3 * Only quirks that affect the whole device, not an interface,
7 #ifndef __LINUX_USB_QUIRKS_H
8 #define __LINUX_USB_QUIRKS_H
10 /* string descriptors must not be fetched using a 255-byte read */
11 #define USB_QUIRK_STRING_FETCH_255 0x00000001
13 /* device can't resume correctly so reset it instead */
14 #define USB_QUIRK_RESET_RESUME 0x00000002
16 /* device can't handle Set-Interface requests */
17 #define USB_QUIRK_NO_SET_INTF 0x00000004
19 /* device can't handle its Configuration or Interface strings */
20 #define USB_QUIRK_CONFIG_INTF_STRINGS 0x00000008
22 /*device will morph if reset, don't use reset for handling errors */
23 #define USB_QUIRK_RESET_MORPHS 0x00000010
25 /* device has more interface descriptions than the bNumInterfaces count,
26 and can't handle talking to these interfaces */
27 #define USB_QUIRK_HONOR_BNUMINTERFACES 0x00000020
29 /* device needs a pause during initialization, after we read the device
31 #define USB_QUIRK_DELAY_INIT 0x00000040
34 * For high speed and super speed interupt endpoints, the USB 2.0 and
35 * USB 3.0 spec require the interval in microframes
36 * (1 microframe = 125 microseconds) to be calculated as
37 * interval = 2 ^ (bInterval-1).
39 * Devices with this quirk report their bInterval as the result of this
40 * calculation instead of the exponent variable used in the calculation.
42 #define USB_QUIRK_LINEAR_UFRAME_INTR_BINTERVAL 0x00000080
44 /* device generates spurious wakeup, ignore remote wakeup capability */
45 #define USB_QUIRK_IGNORE_REMOTE_WAKEUP 0x00000200
48 * Device reports its bInterval as linear frames instead of the
49 * USB 2.0 calculation.
51 #define USB_QUIRK_LINEAR_FRAME_INTR_BINTERVAL BIT(11)
53 /* Device needs a pause after every control message. */
54 #define USB_QUIRK_DELAY_CTRL_MSG BIT(13)
56 #endif /* __LINUX_USB_QUIRKS_H */