quirks.h 2.0 KB

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  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. #ifndef __LINUX_USB_QUIRKS_H
  7. #define __LINUX_USB_QUIRKS_H
  8. /* string descriptors must not be fetched using a 255-byte read */
  9. #define USB_QUIRK_STRING_FETCH_255 BIT(0)
  10. /* device can't resume correctly so reset it instead */
  11. #define USB_QUIRK_RESET_RESUME BIT(1)
  12. /* device can't handle Set-Interface requests */
  13. #define USB_QUIRK_NO_SET_INTF BIT(2)
  14. /* device can't handle its Configuration or Interface strings */
  15. #define USB_QUIRK_CONFIG_INTF_STRINGS BIT(3)
  16. /* device can't be reset(e.g morph devices), don't use reset */
  17. #define USB_QUIRK_RESET BIT(4)
  18. /* device has more interface descriptions than the bNumInterfaces count,
  19. and can't handle talking to these interfaces */
  20. #define USB_QUIRK_HONOR_BNUMINTERFACES BIT(5)
  21. /* device needs a pause during initialization, after we read the device
  22. descriptor */
  23. #define USB_QUIRK_DELAY_INIT BIT(6)
  24. /*
  25. * For high speed and super speed interupt endpoints, the USB 2.0 and
  26. * USB 3.0 spec require the interval in microframes
  27. * (1 microframe = 125 microseconds) to be calculated as
  28. * interval = 2 ^ (bInterval-1).
  29. *
  30. * Devices with this quirk report their bInterval as the result of this
  31. * calculation instead of the exponent variable used in the calculation.
  32. */
  33. #define USB_QUIRK_LINEAR_UFRAME_INTR_BINTERVAL BIT(7)
  34. /* device can't handle device_qualifier descriptor requests */
  35. #define USB_QUIRK_DEVICE_QUALIFIER BIT(8)
  36. /* device generates spurious wakeup, ignore remote wakeup capability */
  37. #define USB_QUIRK_IGNORE_REMOTE_WAKEUP BIT(9)
  38. /* device can't handle Link Power Management */
  39. #define USB_QUIRK_NO_LPM BIT(10)
  40. /*
  41. * Device reports its bInterval as linear frames instead of the
  42. * USB 2.0 calculation.
  43. */
  44. #define USB_QUIRK_LINEAR_FRAME_INTR_BINTERVAL BIT(11)
  45. /* Device needs a pause after every control message. */
  46. #define USB_QUIRK_DELAY_CTRL_MSG BIT(13)
  47. #endif /* __LINUX_USB_QUIRKS_H */