Documentation/usb/usb-serial.rst

2 USB serial
8   The USB serial driver currently supports a number of different USB to
9   serial converter products, as well as some devices that use a serial
19   Currently the driver can handle up to 256 different serial interfaces at
45 --------------------------------------
58 -----------------------------------------------
72     This goes against the current documentation for pilot-xfer and other
77   (this is usually /dev/ttyUSB1 if you do not have any other usb-serial
99   Kroah-Hartman at greg@kroah.com
103 -------------------
110   id. e.g. modprobe ipaq vendor=0x3f0 product=0x1125
112   The driver presents a serial interface (usually on /dev/ttyUSB0) over
115   significant advantage of using USB is speed - I can get 73 to 113
120   contains the necessary packages and a simple step-by-step howto.
129   iPAQ - disable autosync by going to the Start/Settings/Connections menu
138   You can also try soft-resetting your PDA before attempting a connection.
147   Toshiba's $350 serial cable for flashing!! :D
154 Keyspan PDA Serial Adapter
155 --------------------------
157   Single port DB-9 serial adapter, pushed as a PDA adapter for iMacs (mostly
160   This driver also works for the Xircom/Entrega single port serial adapter.
165      - basic input/output (tested with 'cu')
166      - blocking write when serial line can't keep up
167      - changing baud rates (up to 115200)
168      - getting/setting modem control pins (TIOCM{GET,SET,BIS,BIC})
169      - sending break (although duration looks suspect)
172      - device strings (as logged by kernel) have trailing binary garbage
173      - device ID isn't right, might collide with other Keyspan products
174      - changing baud rates ought to flush tx/rx to avoid mangled half characters
177      - parity, 7 vs 8 bits per char, 1 or 2 stop bits
178      - HW flow control
179      - not all of the standard USB descriptors are handled:
186 Keyspan USA-series Serial Adapters
187 ----------------------------------
189   Single, Dual and Quad port adapters - driver uses Keyspan supplied
194     The USA-18X, USA-28X, USA-19, USA-19W and USA-49W are supported and
195     have been pretty thoroughly tested at various baud rates with 8-N-1
199     The USA-28 isn't yet supported though doing so should be pretty
211 FTDI Single Port Serial Driver
212 ------------------------------
214   This is a single port DB-25 serial adapter.
218                 - TripNav TN-200 USB GPS
219                 - Navis Engineering Bureau CH-4711 USB GPS
225 -------------------------------
231 Cypress M8 CY4601 Family Serial Driver
232 --------------------------------------
235   has been improved since that previous form to support dynamic serial
245 		- DeLorme's USB Earthmate GPS (SiRF Star II lp arch)
246 		- Cypress HID->COM RS232 adapter
250 			hid->com device.
275 	The hid->com adapter can run at a maximum baud of 115200bps.  Please note
289 		(your problems/patches can alternately be submitted to usb-devel)
293 ----------------------
296   (plus a parallel port) and 4 port USB serial converters.  The driver
299   This driver works under SMP with the usb-uhci driver.  It does not
304   on the USB 2 is supported as a serial to parallel converter; in other
305   words, it appears as another USB serial port on Linux, even though
314 Belkin USB Serial Adapter F5U103
315 --------------------------------
317   Single port DB-9/PS-2 serial adapter from Belkin with firmware by eTEK Labs.
318   The Peracom single port serial adapter also works with this driver, as
325       - Baud rate    300-230400
326       - Data bits    5-8
327       - Stop bits    1-2
328       - Parity       N,E,O,M,S
329       - Handshake    None, Software (XON/XOFF), Hardware (CTSRTS,CTSDTR) [1]_
330       - Break        Set and clear
331       - Line control Input/Output query and control [2]_
346     - Add true modem control line query capability.  Currently tracks the
348     - Add error reporting back to application for UART error conditions.
349     - Add support for flush ioctls.
350     - Add everything else that is missing :)
356 Empeg empeg-car Mark I/II Driver
357 --------------------------------
360   client synchronization tools for an Empeg empeg-car mp3 player.
365     * emptool --usb /dev/ttyUSB0 (or whatever you named your device node)
371 MCT USB Single Port Serial Adapter U232
372 ---------------------------------------
374   This driver is for the MCT USB-RS232 Converter (25 pin, Model No.
375   U232-P25) from Magic Control Technology Corp. (there is also a 9 pin
376   Model No. U232-P9). More information about this device can be found at
377   the manufacturer's web-site: http://www.mct.com.tw.
380   It is derived from the Belkin USB Serial Adapter F5U103 driver and its
384   the same Vendor ID but different Product IDs. Sitecom's U232-P25 serial
385   converter uses Product ID 0x230 and Vendor ID 0x711 and works with this
386   driver. Also, D-Link's DU-H3SP USB BAY also works with this driver.
393 -----------------------------------
398        - Edgeport/4
399        - Rapidport/4
400        - Edgeport/4t
401        - Edgeport/2
402        - Edgeport/4i
403        - Edgeport/2i
404        - Edgeport/421
405        - Edgeport/21
406        - Edgeport/8
407        - Edgeport/8 Dual
408        - Edgeport/2D8
409        - Edgeport/4D8
410        - Edgeport/8i
411        - Edgeport/2 DIN
412        - Edgeport/4 DIN
413        - Edgeport/16 Dual
416   Kroah-Hartman at greg@kroah.com
419 REINER SCT cyberJack pinpad/e-com USB chipcard reader
420 -----------------------------------------------------
427     There is also a user part for a CT-API driver available. A site
429     maintainer (linux-usb@sii.li).
432   linux-usb@sii.li
436 ----------------------
439   in it.  This includes a number of single port USB to serial converters,
441   from Aten (the UC-232) and IO-Data work with this driver, as does
442   the DCU-11 mobile-phone cable.
445   Kroah-Hartman at greg@kroah.com
448 KL5KUSB105 chipset / PalmConnect USB single-port adapter
449 --------------------------------------------------------
455   still missing.  Notably, serial ioctls are sometimes faked or not yet
458   and pilot-manager -daemon calls will work.  Baud rates up to 115200
463   See http://www.uuhaus.de/linux/palmconnect.html for up-to-date
467 ------------------------
469   This driver is for the Winchiphead CH341 USB-RS232 Converter. This chip
477   frank@kingswood-consulting.co.uk.
480 -------------------------------
483   and Cables Unlimited.  There may be others.  The 7720 provides two serial
484   ports, and the 7715 provides one serial and one standard PC parallel port.
486   will not appear unless parallel port support is first enabled at the top-level
491     - Implement ECP/EPP modes for the parallel port.
492     - Baud rates higher than 115200 are currently broken.
493     - Devices with a single serial port based on the Moschip MCS7703 may work
497 Generic Serial driver
498 ---------------------
509 	echo <vid> <pid> >/sys/bus/usb-serial/drivers/generic/new_id
512   device's vendor id and product id.
513   If the driver is compiled as a module you can also provide one id when
523   Kroah-Hartman at greg@kroah.com
531   above, or join the Linux-USB mailing list (information on joining the
533   http://www.linux-usb.org/ )
536 Greg Kroah-Hartman