USB_QUIRK(4FREEBSD) - Linux man page online | Special files

USB quirks module.

USB_QUIRK(4) BSD Kernel Interfaces Manual USB_QUIRK(4)


usb_quirk — USB quirks module


To compile this module into the kernel, place the following line in your kernel configura‐ tion file: device usb Alternatively, to load the module at boot time, place the following line in loader.conf(5): usb_quirk_load="YES"


The usb_quirk module provides support for dynamically adding and removing quirks for USB devices with usbconfig(8). General quirks: UQ_AUDIO_SWAP_LR swap left and right channels UQ_AU_INP_ASYNC input is async despite claim of adaptive UQ_AU_NO_FRAC do not adjust for fractional samples UQ_AU_NO_XU audio device has broken extension unit UQ_AU_VENDOR_CLASS audio device uses vendor class to identify itself UQ_AU_SET_SPDIF_CM6206 audio device needs special programming to enable S/PDIF audio output UQ_BAD_ADC bad audio spec version number UQ_BAD_AUDIO device claims audio class, but is not UQ_BROKEN_BIDIR printer has broken bidir mode UQ_BUS_POWERED device is bus powered, despite claim UQ_HID_IGNORE device should be ignored by hid class UQ_KBD_IGNORE device should be ignored by kbd class UQ_KBD_BOOTPROTO device should set the boot protocol UQ_UMS_IGNORE device should be ignored by ums class UQ_MS_BAD_CLASS does not identify properly UQ_MS_LEADING_BYTE mouse sends an unknown leading byte UQ_MS_REVZ mouse has Z-axis reversed UQ_NO_STRINGS string descriptors are broken UQ_POWER_CLAIM hub lies about power status UQ_SPUR_BUT_UP spurious mouse button up events UQ_SWAP_UNICODE has some Unicode strings swapped UQ_CFG_INDEX_1 select configuration index 1 by default UQ_CFG_INDEX_2 select configuration index 2 by default UQ_CFG_INDEX_3 select configuration index 3 by default UQ_CFG_INDEX_4 select configuration index 4 by default UQ_CFG_INDEX_0 select configuration index 0 by default UQ_ASSUME_CM_OVER_DATA assume cm over data feature USB Mass Storage quirks: UQ_MSC_NO_TEST_UNIT_READY send start/stop instead of TUR UQ_MSC_NO_RS_CLEAR_UA does not reset Unit Att. UQ_MSC_NO_START_STOP does not support start/stop UQ_MSC_NO_GETMAXLUN does not support get max LUN UQ_MSC_NO_INQUIRY fake generic inq response UQ_MSC_NO_INQUIRY_EVPD does not support inq EVPD UQ_MSC_NO_SYNC_CACHE does not support sync cache UQ_MSC_SHUTTLE_INIT requires Shuttle init sequence UQ_MSC_ALT_IFACE_1 switch to alternate interface 1 UQ_MSC_FLOPPY_SPEED does floppy speeds (20kb/s) UQ_MSC_IGNORE_RESIDUE gets residue wrong UQ_MSC_WRONG_CSWSIG uses wrong CSW signature UQ_MSC_RBC_PAD_TO_12 pad RBC requests to 12 bytes UQ_MSC_READ_CAP_OFFBY1 reports sector count, not max sec. UQ_MSC_FORCE_SHORT_INQ does not support full inq. UQ_MSC_FORCE_WIRE_BBB force BBB wire protocol UQ_MSC_FORCE_WIRE_CBI force CBI wire protocol UQ_MSC_FORCE_WIRE_CBI_I force CBI with int. wire protocol UQ_MSC_FORCE_PROTO_SCSI force SCSI command protocol UQ_MSC_FORCE_PROTO_ATAPI force ATAPI command protocol UQ_MSC_FORCE_PROTO_UFI force UFI command protocol UQ_MSC_FORCE_PROTO_RBC force RBC command protocol 3G Datacard (u3g) quirks: UQ_MSC_EJECT_HUAWEI ejects after Huawei USB command UQ_MSC_EJECT_SIERRA ejects after Sierra USB command UQ_MSC_EJECT_SCSIEJECT ejects after SCSI eject command 0x1b0000000200 UQ_MSC_EJECT_REZERO ejects after SCSI rezero command 0x010000000000 UQ_MSC_EJECT_ZTESTOR ejects after ZTE SCSI command 0x850101011801010101010000 UQ_MSC_EJECT_CMOTECH ejects after C-motech SCSI command 0xff52444556434847 UQ_MSC_EJECT_WAIT wait for the device to eject UQ_MSC_EJECT_SAEL_M460 ejects after Sael USB commands UQ_MSC_EJECT_HUAWEISCSI ejects after Huawei SCSI command 0x11060000000000000000000000000000 UQ_MSC_EJECT_TCT ejects after TCT SCSI command 0x06f504025270 UQ_MSC_DYMO_EJECT ejects after HID command 0x1b5a01 See /sys/dev/usb/quirk/usb_quirk.h or run "usbconfig dump_quirk_names" for the complete list of supported quirks.


The following tunable can be set at the loader(8) prompt before booting the kernel, or stored in loader.conf(5). hw.usb.quirk.%d The value is a string whose format is: "VendorId ProductId LowRevision HighRevision UQ_QUIRK,..." Installs the quirks UQ_QUIRK,... for all USB devices matching VendorId and ProductId which have a hardware revision between and including LowRevision and HighRevision. VendorId, ProductId, LowRevision and HighRevision are all 16 bits numbers which can be decimal or hexadecimal based. A maximum of 100 variables hw.usb.quirk.0, .1, ..., .99 can be defined. If a matching entry is found in the kernel's internal quirks table, it is replaced by the new definition. Else a new entry is created given that the quirk table is not full. The kernel iterates over the hw.usb.quirk.N variables starting at N = 0 and stops at N = 99 or the first non-existing one.


After attaching a u3g device which appears as a USB device on ugen0.3: usbconfig -d ugen0.3 add_quirk UQ_MSC_EJECT_WAIT Enable a Holtec/Keep Out F85 gaming keyboard on ugen1.4: usbconfig -d ugen1.4 add_quirk UQ_KBD_BOOTPROTO To install a quirk at boot time, place one or several lines like the following in loader.conf(5): hw.usb.quirk.0="0x04d9 0xfa50 0 0xffff UQ_KBD_IGNORE"




The usb_quirk module appeared in FreeBSD 8.0, and was written by Hans Petter Selasky <>. This manual page was written by Nick Hibma <>.
BSD January 17, 2017 BSD
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