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/* SPDX-License-Identifier: GPL-2.0 */ /* * This file holds the definitions of quirks found in USB devices. * Only quirks that affect the whole device, not an interface, * belong here. */ #ifndef __LINUX_USB_QUIRKS_H #define __LINUX_USB_QUIRKS_H /* string descriptors must not be fetched using a 255-byte read */ #define USB_QUIRK_STRING_FETCH_255 BIT(0) /* device can't resume correctly so reset it instead */ #define USB_QUIRK_RESET_RESUME BIT(1) /* device can't handle Set-Interface requests */ #define USB_QUIRK_NO_SET_INTF BIT(2) /* device can't handle its Configuration or Interface strings */ #define USB_QUIRK_CONFIG_INTF_STRINGS BIT(3) /* device can't be reset(e.g morph devices), don't use reset */ #define USB_QUIRK_RESET BIT(4) /* device has more interface descriptions than the bNumInterfaces count, and can't handle talking to these interfaces */ #define USB_QUIRK_HONOR_BNUMINTERFACES BIT(5) /* device needs a pause during initialization, after we read the device descriptor */ #define USB_QUIRK_DELAY_INIT BIT(6) /* * For high speed and super speed interupt endpoints, the USB 2.0 and * USB 3.0 spec require the interval in microframes * (1 microframe = 125 microseconds) to be calculated as * interval = 2 ^ (bInterval-1). * * Devices with this quirk report their bInterval as the result of this * calculation instead of the exponent variable used in the calculation. */ #define USB_QUIRK_LINEAR_UFRAME_INTR_BINTERVAL BIT(7) /* device can't handle device_qualifier descriptor requests */ #define USB_QUIRK_DEVICE_QUALIFIER BIT(8) /* device generates spurious wakeup, ignore remote wakeup capability */ #define USB_QUIRK_IGNORE_REMOTE_WAKEUP BIT(9) /* device can't handle Link Power Management */ #define USB_QUIRK_NO_LPM BIT(10) /* * Device reports its bInterval as linear frames instead of the * USB 2.0 calculation. */ #define USB_QUIRK_LINEAR_FRAME_INTR_BINTERVAL BIT(11) /* * Device needs to be disconnected before suspend to prevent spurious * wakeup. */ #define USB_QUIRK_DISCONNECT_SUSPEND BIT(12) /* Device needs a pause after every control message. */ #define USB_QUIRK_DELAY_CTRL_MSG BIT(13) /* Hub needs extra delay after resetting its port. */ #define USB_QUIRK_HUB_SLOW_RESET BIT(14) /* device has blacklisted endpoints */ #define USB_QUIRK_ENDPOINT_BLACKLIST BIT(15) #endif /* __LINUX_USB_QUIRKS_H */