usb-serial.txt

linux 内核源代码

	The device can be put into sirf mode by issuing NMEA command:
		$PSRF100,<protocol>,<baud>,<databits>,<stopbits>,<parity>*CHECKSUM
		$PSRF100,0,9600,8,1,0*0C

		It should then be sufficient to change the port termios to match this
		to begin communicating.

	As far as I can tell it supports pretty much every sirf command as
	documented online available with firmware 2.31, with some unknown
	message ids.

	The hid->com adapter can run at a maximum baud of 115200bps.  Please note
	that the device has trouble or is incapable of raising line voltage properly.
	It will be fine with null modem links, as long as you do not try to link two
	together without hacking the adapter to set the line high.

	The driver is smp safe.  Performance with the driver is rather low when using
	it for transferring files.  This is being worked on, but I would be willing to
	accept patches.  An urb queue or packet buffer would likely fit the bill here.

	If you have any questions, problems, patches, feature requests, etc. you can
	contact me here via email:
					[e-mail]
		(your problems/patches can alternately be submitted to usb-devel)


Digi AccelePort Driver

  This driver supports the Digi AccelePort USB 2 and 4 devices, 2 port
  (plus a parallel port) and 4 port USB serial converters.  The driver
  does NOT yet support the Digi AccelePort USB 8.

  This driver works under SMP with the usb-uhci driver.  It does not
  work under SMP with the uhci driver.

  The driver is generally working, though we still have a few more ioctls
  to implement and final testing and debugging to do.  The parallel port
  on the USB 2 is supported as a serial to parallel converter; in other
  words, it appears as another USB serial port on Linux, even though
  physically it is really a parallel port.  The Digi Acceleport USB 8
  is not yet supported.

  Please contact Peter Berger ([e-mail]) or Al Borchers
  ([e-mail]) for questions or problems with this
  driver.


Belkin USB Serial Adapter F5U103

  Single port DB-9/PS-2 serial adapter from Belkin with firmware by eTEK Labs.
  The Peracom single port serial adapter also works with this driver, as
  well as the GoHubs adapter.

  Current status:
    The following have been tested and work:
      Baud rate    300-230400               
      Data bits    5-8
      Stop bits    1-2
      Parity       N,E,O,M,S
      Handshake    None, Software (XON/XOFF), Hardware (CTSRTS,CTSDTR)*
      Break        Set and clear
      Line control Input/Output query and control **

      *  Hardware input flow control is only enabled for firmware
         levels above 2.06.  Read source code comments describing Belkin
         firmware errata.  Hardware output flow control is working for all
         firmware versions.
      ** Queries of inputs (CTS,DSR,CD,RI) show the last
         reported state.  Queries of outputs (DTR,RTS) show the last
         requested state and may not reflect current state as set by
         automatic hardware flow control.

  TO DO List:
    -- Add true modem control line query capability.  Currently tracks the
       states reported by the interrupt and the states requested.
    -- Add error reporting back to application for UART error conditions.
    -- Add support for flush ioctls.
    -- Add everything else that is missing :)

  For any questions or problems with this driver, please contact William
  Greathouse at [e-mail]


Empeg empeg-car Mark I/II Driver

  This is an experimental driver to provide connectivity support for the
  client synchronization tools for an Empeg empeg-car mp3 player.

  Tips:
    * Don't forget to create the device nodes for ttyUSB{0,1,2,...}
    * modprobe empeg (modprobe is your friend)
    * emptool --usb /dev/ttyUSB0 (or whatever you named your device node)

  For any questions or problems with this driver, please contact Gary
  Brubaker at [e-mail]


MCT USB Single Port Serial Adapter U232

  This driver is for the MCT USB-RS232 Converter (25 pin, Model No.
  U232-P25) from Magic Control Technology Corp. (there is also a 9 pin
  Model No. U232-P9). More information about this device can be found at
  the manufacturer's web-site: http://www.mct.com.tw.

  The driver is generally working, though it still needs some more testing.
  It is derived from the Belkin USB Serial Adapter F5U103 driver and its
  TODO list is valid for this driver as well.

  This driver has also been found to work for other products, which have
  the same Vendor ID but different Product IDs. Sitecom's U232-P25 serial
  converter uses Product ID 0x230 and Vendor ID 0x711 and works with this
  driver. Also, D-Link's DU-H3SP USB BAY also works with this driver.

  For any questions or problems with this driver, please contact Wolfgang
  Grandegger at [e-mail]


Inside Out Networks Edgeport Driver

  This driver supports all devices made by Inside Out Networks, specifically
  the following models:
       Edgeport/4
       Rapidport/4
       Edgeport/4t
       Edgeport/2
       Edgeport/4i
       Edgeport/2i
       Edgeport/421
       Edgeport/21
       Edgeport/8
       Edgeport/8 Dual
       Edgeport/2D8
       Edgeport/4D8
       Edgeport/8i
       Edgeport/2 DIN
       Edgeport/4 DIN
       Edgeport/16 Dual

  For any questions or problems with this driver, please contact Greg
  Kroah-Hartman at [e-mail]


REINER SCT cyberJack pinpad/e-com USB chipcard reader
   
  Interface to ISO 7816 compatible contactbased chipcards, e.g. GSM SIMs.
  
  Current status:
    This is the kernel part of the driver for this USB card reader.
    There is also a user part for a CT-API driver available. A site
    for downloading is TBA. For now, you can request it from the
    maintainer ([e-mail]).

  For any questions or problems with this driver, please contact
  [e-mail]


Prolific PL2303 Driver

  This driver supports any device that has the PL2303 chip from Prolific
  in it.  This includes a number of single port USB to serial
  converters and USB GPS devices.  Devices from Aten (the UC-232) and
  IO-Data work with this driver, as does the DCU-11 mobile-phone cable.

  For any questions or problems with this driver, please contact Greg
  Kroah-Hartman at [e-mail]
  

KL5KUSB105 chipset / PalmConnect USB single-port adapter
  
Current status:
  The driver was put together by looking at the usb bus transactions
  done by Palm's driver under Windows, so a lot of functionality is
  still missing.  Notably, serial ioctls are sometimes faked or not yet
  implemented.  Support for finding out about DSR and CTS line status is
  however implemented (though not nicely), so your favorite autopilot(1)
  and pilot-manager -daemon calls will work.  Baud rates up to 115200
  are supported, but handshaking (software or hardware) is not, which is
  why it is wise to cut down on the rate used is wise for large
  transfers until this is settled.
  
Options supported:
  If this driver is compiled as a module you can pass the following
  options to it:
  debug			- extra verbose debugging info
  			  (default: 0; nonzero enables)
  use_lowlatency	- use low_latency flag to speed up tty layer
			  when reading from the device.
			  (default: 0; nonzero enables)

  See http://www.uuhaus.de/linux/palmconnect.html for up-to-date
  information on this driver.

Winchiphead CH341 Driver

  This driver is for the Winchiphead CH341 USB-RS232 Converter. This chip
  also implements an IEEE 1284 parallel port, I2C and SPI, but that is not
  supported by the driver. The protocol was analyzed from the behaviour
  of the Windows driver, no datasheet is available at present.
  The manufacturer's website: http://www.winchiphead.com/.
  For any questions or problems with this driver, please contact
  [e-mail].


Generic Serial driver

  If your device is not one of the above listed devices, compatible with
  the above models, you can try out the "generic" interface. This
  interface does not provide any type of control messages sent to the
  device, and does not support any kind of device flow control. All that
  is required of your device is that it has at least one bulk in endpoint,
  or one bulk out endpoint. 
  
  To enable the generic driver to recognize your device, build the driver
  as a module and load it by the following invocation:
	insmod usbserial vendor=0x#### product=0x####
  where the #### is replaced with the hex representation of your device's
  vendor id and product id.

  This driver has been successfully used to connect to the NetChip USB
  development board, providing a way to develop USB firmware without
  having to write a custom driver.

  For any questions or problems with this driver, please contact Greg
  Kroah-Hartman at [e-mail]


CONTACT:

  If anyone has any problems using these drivers, with any of the above
  specified products, please contact the specific driver's author listed
  above, or join the Linux-USB mailing list (information on joining the
  mailing list, as well as a link to its searchable archive is at
  http://www.linux-usb.org/ )


Greg Kroah-Hartman
[e-mail]