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