| /* 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 endpoints that should be ignored */ |
| #define USB_QUIRK_ENDPOINT_IGNORE BIT(15) |
| |
| #endif /* __LINUX_USB_QUIRKS_H */ |
