1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */ 2*4882a593Smuzhiyun /* 3*4882a593Smuzhiyun * This file holds the definitions of quirks found in USB devices. 4*4882a593Smuzhiyun * Only quirks that affect the whole device, not an interface, 5*4882a593Smuzhiyun * belong here. 6*4882a593Smuzhiyun */ 7*4882a593Smuzhiyun 8*4882a593Smuzhiyun #ifndef __LINUX_USB_QUIRKS_H 9*4882a593Smuzhiyun #define __LINUX_USB_QUIRKS_H 10*4882a593Smuzhiyun 11*4882a593Smuzhiyun /* string descriptors must not be fetched using a 255-byte read */ 12*4882a593Smuzhiyun #define USB_QUIRK_STRING_FETCH_255 BIT(0) 13*4882a593Smuzhiyun 14*4882a593Smuzhiyun /* device can't resume correctly so reset it instead */ 15*4882a593Smuzhiyun #define USB_QUIRK_RESET_RESUME BIT(1) 16*4882a593Smuzhiyun 17*4882a593Smuzhiyun /* device can't handle Set-Interface requests */ 18*4882a593Smuzhiyun #define USB_QUIRK_NO_SET_INTF BIT(2) 19*4882a593Smuzhiyun 20*4882a593Smuzhiyun /* device can't handle its Configuration or Interface strings */ 21*4882a593Smuzhiyun #define USB_QUIRK_CONFIG_INTF_STRINGS BIT(3) 22*4882a593Smuzhiyun 23*4882a593Smuzhiyun /* device can't be reset(e.g morph devices), don't use reset */ 24*4882a593Smuzhiyun #define USB_QUIRK_RESET BIT(4) 25*4882a593Smuzhiyun 26*4882a593Smuzhiyun /* device has more interface descriptions than the bNumInterfaces count, 27*4882a593Smuzhiyun and can't handle talking to these interfaces */ 28*4882a593Smuzhiyun #define USB_QUIRK_HONOR_BNUMINTERFACES BIT(5) 29*4882a593Smuzhiyun 30*4882a593Smuzhiyun /* device needs a pause during initialization, after we read the device 31*4882a593Smuzhiyun descriptor */ 32*4882a593Smuzhiyun #define USB_QUIRK_DELAY_INIT BIT(6) 33*4882a593Smuzhiyun 34*4882a593Smuzhiyun /* 35*4882a593Smuzhiyun * For high speed and super speed interupt endpoints, the USB 2.0 and 36*4882a593Smuzhiyun * USB 3.0 spec require the interval in microframes 37*4882a593Smuzhiyun * (1 microframe = 125 microseconds) to be calculated as 38*4882a593Smuzhiyun * interval = 2 ^ (bInterval-1). 39*4882a593Smuzhiyun * 40*4882a593Smuzhiyun * Devices with this quirk report their bInterval as the result of this 41*4882a593Smuzhiyun * calculation instead of the exponent variable used in the calculation. 42*4882a593Smuzhiyun */ 43*4882a593Smuzhiyun #define USB_QUIRK_LINEAR_UFRAME_INTR_BINTERVAL BIT(7) 44*4882a593Smuzhiyun 45*4882a593Smuzhiyun /* device can't handle device_qualifier descriptor requests */ 46*4882a593Smuzhiyun #define USB_QUIRK_DEVICE_QUALIFIER BIT(8) 47*4882a593Smuzhiyun 48*4882a593Smuzhiyun /* device generates spurious wakeup, ignore remote wakeup capability */ 49*4882a593Smuzhiyun #define USB_QUIRK_IGNORE_REMOTE_WAKEUP BIT(9) 50*4882a593Smuzhiyun 51*4882a593Smuzhiyun /* device can't handle Link Power Management */ 52*4882a593Smuzhiyun #define USB_QUIRK_NO_LPM BIT(10) 53*4882a593Smuzhiyun 54*4882a593Smuzhiyun /* 55*4882a593Smuzhiyun * Device reports its bInterval as linear frames instead of the 56*4882a593Smuzhiyun * USB 2.0 calculation. 57*4882a593Smuzhiyun */ 58*4882a593Smuzhiyun #define USB_QUIRK_LINEAR_FRAME_INTR_BINTERVAL BIT(11) 59*4882a593Smuzhiyun 60*4882a593Smuzhiyun /* 61*4882a593Smuzhiyun * Device needs to be disconnected before suspend to prevent spurious 62*4882a593Smuzhiyun * wakeup. 63*4882a593Smuzhiyun */ 64*4882a593Smuzhiyun #define USB_QUIRK_DISCONNECT_SUSPEND BIT(12) 65*4882a593Smuzhiyun 66*4882a593Smuzhiyun /* Device needs a pause after every control message. */ 67*4882a593Smuzhiyun #define USB_QUIRK_DELAY_CTRL_MSG BIT(13) 68*4882a593Smuzhiyun 69*4882a593Smuzhiyun /* Hub needs extra delay after resetting its port. */ 70*4882a593Smuzhiyun #define USB_QUIRK_HUB_SLOW_RESET BIT(14) 71*4882a593Smuzhiyun 72*4882a593Smuzhiyun /* device has endpoints that should be ignored */ 73*4882a593Smuzhiyun #define USB_QUIRK_ENDPOINT_IGNORE BIT(15) 74*4882a593Smuzhiyun 75*4882a593Smuzhiyun /* device can't support auto suspend function */ 76*4882a593Smuzhiyun #define USB_QUIRK_AUTO_SUSPEND BIT(16) 77*4882a593Smuzhiyun 78*4882a593Smuzhiyun #endif /* __LINUX_USB_QUIRKS_H */ 79