USB: usbserial: mos7720: add support for parallel port on moschip 7715

[pandora-kernel.git] / Documentation / usb / usb-serial.txt

diff --git a/Documentation/usb/usb-serial.txt b/Documentation/usb/usb-serial.txt
index 5b635ae..f4d2145 100644 (file)
--- a/Documentation/usb/usb-serial.txt
+++ b/Documentation/usb/usb-serial.txt
@@ -192,12 +192,13 @@ Keyspan USA-series Serial Adapters
 
 FTDI Single Port Serial Driver
 
-  This is a single port DB-25 serial adapter. More information about this
-  device and the Linux driver can be found at:
-       http://reality.sgi.com/bryder_wellington/ftdi_sio/
+  This is a single port DB-25 serial adapter.
 
-  For any questions or problems with this driver, please contact Bill Ryder
-  at bryder@sgi.com
+  Devices supported include:
+                -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
@@ -219,7 +220,7 @@ Cypress M8 CY4601 Family Serial Driver
 
     Devices supported:
 
-               -DeLorme's USB Earthmate (SiRF Star II lp arch)
+               -DeLorme's USB Earthmate GPS (SiRF Star II lp arch)
                -Cypress HID->COM RS232 adapter
        
                Note: Cypress Semiconductor claims no affiliation with the
@@ -338,7 +339,7 @@ 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 manufacture's web-site: http://www.mct.com.tw.
+  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
@@ -395,9 +396,10 @@ 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 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.
+  in it.  This includes a number of single port USB to serial converters,
+  more than 70% of USB GPS devices (in 2010), and some USB UPSes. 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 greg@kroah.com
@@ -428,6 +430,33 @@ Options supported:
   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
+  ports, and the 7715 provides one serial and one standard PC parallel port.
+  Support for the 7715's parallel port is enabled by a separate option, which
+  will not appear unless parallel port support is first enabled at the top-level
+  of the Device Drivers config menu.  Currently only compatibility mode is
+  supported on the parallel port (no ECP/EPP).
+
+  TODO:
+    - Implement ECP/EPP modes for the parallel port.
+    - Baud rates higher than 115200 are currently broken.
+    - Devices with a single serial port based on the Moschip MCS7703 may work
+      with this driver with a simple addition to the usb_device_id table.  I
+      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