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authorMauro Carvalho Chehab <mchehab+samsung@kernel.org>2019-04-15 23:56:01 -0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-04-16 12:16:19 +0200
commitd80b5005c5dd113442454b469752f0f95ac15645 (patch)
tree36450319ec6c345904bfb591fdd125af093db2b6 /Documentation/usb/usb-serial.txt
parent5f9be5f3f89921de6e3961bedf3202a383f126c9 (diff)
docs: usb: convert documents to ReST
Convert USB documents to ReST, in order to prepare for adding it to the kernel API book, as most of the stuff there are driver or subsystem-related. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation/usb/usb-serial.txt')
-rw-r--r--Documentation/usb/usb-serial.txt205
1 files changed, 128 insertions, 77 deletions
diff --git a/Documentation/usb/usb-serial.txt b/Documentation/usb/usb-serial.txt
index ab100d6ee436..8fa7dbd3da9a 100644
--- a/Documentation/usb/usb-serial.txt
+++ b/Documentation/usb/usb-serial.txt
@@ -1,4 +1,9 @@
-INTRODUCTION
+==========
+USB serial
+==========
+
+Introduction
+============
The USB serial driver currently supports a number of different USB to
serial converter products, as well as some devices that use a serial
@@ -8,13 +13,15 @@ INTRODUCTION
the different devices.
-CONFIGURATION
+Configuration
+=============
Currently the driver can handle up to 256 different serial interfaces at
- one time.
+ one time.
The major number that the driver uses is 188 so to use the driver,
- create the following nodes:
+ create the following nodes::
+
mknod /dev/ttyUSB0 c 188 0
mknod /dev/ttyUSB1 c 188 1
mknod /dev/ttyUSB2 c 188 2
@@ -28,12 +35,14 @@ CONFIGURATION
When the device is connected and recognized by the driver, the driver
will print to the system log, which node(s) the device has been bound
to.
-
-SPECIFIC DEVICES SUPPORTED
+
+Specific Devices Supported
+==========================
ConnectTech WhiteHEAT 4 port converter
+--------------------------------------
ConnectTech has been very forthcoming with information about their
device, including providing a unit to test with.
@@ -46,6 +55,7 @@ ConnectTech WhiteHEAT 4 port converter
HandSpring Visor, Palm USB, and Clié USB driver
+-----------------------------------------------
This driver works with all HandSpring USB, Palm USB, and Sony Clié USB
devices.
@@ -62,7 +72,7 @@ HandSpring Visor, Palm USB, and Clié USB driver
This goes against the current documentation for pilot-xfer and other
packages, but is the only way that it will work due to the hardware
in the device.
-
+
When the device is connected, try talking to it on the second port
(this is usually /dev/ttyUSB1 if you do not have any other usb-serial
devices in the system.) The system log should tell you which port is
@@ -78,10 +88,10 @@ HandSpring Visor, Palm USB, and Clié USB driver
try resetting the device, first a hot reset, and then a cold reset if
necessary. Some devices need this before they can talk to the USB port
properly.
-
+
Devices that are not compiled into the kernel can be specified with module
parameters. e.g. modprobe visor vendor=0x54c product=0x66
-
+
There is a webpage and mailing lists for this portion of the driver at:
http://sourceforge.net/projects/usbvisor/
@@ -90,6 +100,7 @@ HandSpring Visor, Palm USB, and Clié USB driver
PocketPC PDA Driver
+-------------------
This driver can be used to connect to Compaq iPAQ, HP Jornada, Casio EM500
and other PDAs running Windows CE 3.0 or PocketPC 2002 using a USB
@@ -135,12 +146,13 @@ PocketPC PDA Driver
be used to flash the ROM, as well as the microP code.. so much for needing
Toshiba's $350 serial cable for flashing!! :D
NOTE: This has NOT been tested. Use at your own risk.
-
+
For any questions or problems with the driver, please contact Ganesh
Varadarajan <ganesh@veritas.com>
Keyspan PDA Serial Adapter
+--------------------------
Single port DB-9 serial adapter, pushed as a PDA adapter for iMacs (mostly
sold in Macintosh catalogs, comes in a translucent white/green dongle).
@@ -148,32 +160,37 @@ Keyspan PDA Serial Adapter
This driver also works for the Xircom/Entrega single port serial adapter.
Current status:
+
Things that work:
- basic input/output (tested with 'cu')
- blocking write when serial line can't keep up
- changing baud rates (up to 115200)
- getting/setting modem control pins (TIOCM{GET,SET,BIS,BIC})
- sending break (although duration looks suspect)
+ - basic input/output (tested with 'cu')
+ - blocking write when serial line can't keep up
+ - changing baud rates (up to 115200)
+ - getting/setting modem control pins (TIOCM{GET,SET,BIS,BIC})
+ - sending break (although duration looks suspect)
+
Things that don't:
- device strings (as logged by kernel) have trailing binary garbage
- device ID isn't right, might collide with other Keyspan products
- changing baud rates ought to flush tx/rx to avoid mangled half characters
+ - device strings (as logged by kernel) have trailing binary garbage
+ - device ID isn't right, might collide with other Keyspan products
+ - changing baud rates ought to flush tx/rx to avoid mangled half characters
+
Big Things on the todo list:
- parity, 7 vs 8 bits per char, 1 or 2 stop bits
- HW flow control
- not all of the standard USB descriptors are handled: Get_Status, Set_Feature
- O_NONBLOCK, select()
+ - parity, 7 vs 8 bits per char, 1 or 2 stop bits
+ - HW flow control
+ - not all of the standard USB descriptors are handled:
+ Get_Status, Set_Feature, O_NONBLOCK, select()
For any questions or problems with this driver, please contact Brian
- Warner at warner@lothar.com
+ Warner at warner@lothar.com
Keyspan USA-series Serial Adapters
+----------------------------------
- Single, Dual and Quad port adapters - driver uses Keyspan supplied
+ Single, Dual and Quad port adapters - driver uses Keyspan supplied
firmware and is being developed with their support.
-
+
Current status:
+
The USA-18X, USA-28X, USA-19, USA-19W and USA-49W are supported and
have been pretty thoroughly tested at various baud rates with 8-N-1
character settings. Other character lengths and parity setups are
@@ -182,32 +199,37 @@ Keyspan USA-series Serial Adapters
The USA-28 isn't yet supported though doing so should be pretty
straightforward. Contact the maintainer if you require this
functionality.
-
+
More information is available at:
+
http://www.carnationsoftware.com/carnation/Keyspan.html
-
+
For any questions or problems with this driver, please contact Hugh
Blemings at hugh@misc.nu
FTDI Single Port Serial Driver
+------------------------------
This is a single port DB-25 serial adapter.
Devices supported include:
- -TripNav TN-200 USB GPS
- -Navis Engineering Bureau CH-4711 USB GPS
+
+ - TripNav TN-200 USB GPS
+ - Navis Engineering Bureau CH-4711 USB GPS
For any questions or problems with this driver, please contact Bill Ryder.
ZyXEL omni.net lcd plus ISDN TA
+-------------------------------
This is an ISDN TA. Please report both successes and troubles to
azummo@towertech.it
Cypress M8 CY4601 Family Serial Driver
+--------------------------------------
This driver was in most part developed by Neil "koyama" Whelchel. It
has been improved since that previous form to support dynamic serial
@@ -215,18 +237,19 @@ Cypress M8 CY4601 Family Serial Driver
part stable and has been tested on an smp machine. (dual p2)
Chipsets supported under CY4601 family:
-
+
CY7C63723, CY7C63742, CY7C63743, CY7C64013
Devices supported:
- -DeLorme's USB Earthmate GPS (SiRF Star II lp arch)
- -Cypress HID->COM RS232 adapter
-
- Note: Cypress Semiconductor claims no affiliation with the
+ - DeLorme's USB Earthmate GPS (SiRF Star II lp arch)
+ - Cypress HID->COM RS232 adapter
+
+ Note:
+ Cypress Semiconductor claims no affiliation with the
hid->com device.
- Most devices using chipsets under the CY4601 family should
+ Most devices using chipsets under the CY4601 family should
work with the driver. As long as they stay true to the CY4601
usbserial specification.
@@ -236,8 +259,9 @@ Cypress M8 CY4601 Family Serial Driver
upon start init to this setting. usbserial core provides the rest
of the termios settings, along with some custom termios so that the
output is in proper format and parsable.
-
- The device can be put into sirf mode by issuing NMEA command:
+
+ 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
@@ -259,11 +283,14 @@ Cypress M8 CY4601 Family Serial Driver
If you have any questions, problems, patches, feature requests, etc. you can
contact me here via email:
+
dignome@gmail.com
+
(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
@@ -285,42 +312,49 @@ Digi AccelePort 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
+
+ - 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) [1]_
+ - Break Set and clear
+ - Line control Input/Output query and control [2]_
+
+ .. [1]
+ 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
+
+ .. [2]
+ 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 :)
+ - 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 wgreathouse@smva.com
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.
@@ -335,6 +369,7 @@ Empeg empeg-car Mark I/II Driver
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
@@ -355,35 +390,39 @@ MCT USB Single Port Serial Adapter U232
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
+
+ - 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 greg@kroah.com
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
@@ -394,6 +433,7 @@ REINER SCT cyberJack pinpad/e-com USB chipcard reader
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,
@@ -403,11 +443,13 @@ Prolific PL2303 Driver
For any questions or problems with this driver, please contact Greg
Kroah-Hartman at greg@kroah.com
-
+
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
@@ -417,21 +459,25 @@ Current status:
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.
-
+
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
frank@kingswood-consulting.co.uk.
Moschip MCS7720, MCS7715 driver
+-------------------------------
These chips are present in devices sold by various manufacturers, such as Syba
and Cables Unlimited. There may be others. The 7720 provides two serial
@@ -449,20 +495,24 @@ Moschip MCS7720, MCS7715 driver
don't have one of these devices, so I can't say for sure.
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.
+ or one bulk out endpoint.
+
+ To enable the generic driver to recognize your device, provide::
- To enable the generic driver to recognize your device, provide
echo <vid> <pid> >/sys/bus/usb-serial/drivers/generic/new_id
+
where the <vid> and <pid> is replaced with the hex representation of your
device's vendor id and product id.
If the driver is compiled as a module you can also provide one id when
- loading the module
+ loading the module::
+
insmod usbserial vendor=0x#### product=0x####
This driver has been successfully used to connect to the NetChip USB
@@ -473,7 +523,8 @@ Generic Serial driver
Kroah-Hartman at greg@kroah.com
-CONTACT:
+Contact
+=======
If anyone has any problems using these drivers, with any of the above
specified products, please contact the specific driver's author listed