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 0x00000001 12 13 /* device can't resume correctly so reset it instead */ 14 #define USB_QUIRK_RESET_RESUME 0x00000002 15 16 /* device can't handle Set-Interface requests */ 17 #define USB_QUIRK_NO_SET_INTF 0x00000004 18 19 /* device can't handle its Configuration or Interface strings */ 20 #define USB_QUIRK_CONFIG_INTF_STRINGS 0x00000008 21 22 /* device can't be reset(e.g morph devices), don't use reset */ 23 #define USB_QUIRK_RESET 0x00000010 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 0x00000020 28 29 /* device needs a pause during initialization, after we read the device 30 descriptor */ 31 #define USB_QUIRK_DELAY_INIT 0x00000040 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 0x00000080 43 44 #endif /* __LINUX_USB_QUIRKS_H */ 45