1 /* 2 * This file holds the definitions of quirks found in USB devices. 3 * Only quirks that affect the whole device, not an interface, 4 * belong here. 5 */ 6 7 #ifndef __LINUX_USB_QUIRKS_H 8 #define __LINUX_USB_QUIRKS_H 9 10 /* string descriptors must not be fetched using a 255-byte read */ 11 #define USB_QUIRK_STRING_FETCH_255 BIT(0) 12 13 /* device can't resume correctly so reset it instead */ 14 #define USB_QUIRK_RESET_RESUME BIT(1) 15 16 /* device can't handle Set-Interface requests */ 17 #define USB_QUIRK_NO_SET_INTF BIT(2) 18 19 /* device can't handle its Configuration or Interface strings */ 20 #define USB_QUIRK_CONFIG_INTF_STRINGS BIT(3) 21 22 /* device can't be reset(e.g morph devices), don't use reset */ 23 #define USB_QUIRK_RESET BIT(4) 24 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 BIT(5) 28 29 /* device needs a pause during initialization, after we read the device 30 descriptor */ 31 #define USB_QUIRK_DELAY_INIT BIT(6) 32 33 /* 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). 38 * 39 * Devices with this quirk report their bInterval as the result of this 40 * calculation instead of the exponent variable used in the calculation. 41 */ 42 #define USB_QUIRK_LINEAR_UFRAME_INTR_BINTERVAL BIT(7) 43 44 /* device can't handle device_qualifier descriptor requests */ 45 #define USB_QUIRK_DEVICE_QUALIFIER BIT(8) 46 47 /* device generates spurious wakeup, ignore remote wakeup capability */ 48 #define USB_QUIRK_IGNORE_REMOTE_WAKEUP BIT(9) 49 50 #endif /* __LINUX_USB_QUIRKS_H */ 51