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-Documentation for dib3000* frontend drivers and dibusb device driver
-====================================================================
-
-Copyright (C) 2004-5 Patrick Boettcher (patrick.boettcher@desy.de),
-
-dibusb and dib3000mb/mc drivers based on GPL code, which has
-
-Copyright (C) 2004 Amaury Demol for DiBcom (ademol@dibcom.fr)
-
-This program is free software; you can redistribute it and/or
-modify it under the terms of the GNU General Public License as
-published by the Free Software Foundation, version 2.
-
-
-Supported devices USB1.1
-========================
-
-Produced and reselled by Twinhan:
----------------------------------
-- TwinhanDTV USB-Ter DVB-T Device (VP7041)
-        http://www.twinhan.com/product_terrestrial_3.asp
-
-- TwinhanDTV Magic Box (VP7041e)
-        http://www.twinhan.com/product_terrestrial_4.asp
-
-- HAMA DVB-T USB device
-        http://www.hama.de/portal/articleId*110620/action*2598
-
-- CTS Portable (Chinese Television System) (2)
-        http://www.2cts.tv/ctsportable/
-
-- Unknown USB DVB-T device with vendor ID Hyper-Paltek
-
-
-Produced and reselled by KWorld:
---------------------------------
-- KWorld V-Stream XPERT DTV DVB-T USB
-        http://www.kworld.com.tw/en/product/DVBT-USB/DVBT-USB.html
-
-- JetWay DTV DVB-T USB
-        http://www.jetway.com.tw/evisn/product/lcd-tv/DVT-USB/dtv-usb.htm
-
-- ADSTech Instant TV DVB-T USB
-        http://www.adstech.com/products/PTV-333/intro/PTV-333_intro.asp?pid=PTV-333
-
-
-Others:
--------
-- Ultima Electronic/Artec T1 USB TVBOX (AN2135, AN2235, AN2235 with Panasonic Tuner)
-        http://82.161.246.249/products-tvbox.html
-
-- Compro Videomate DVB-U2000 - DVB-T USB (2)
-        http://www.comprousa.com/products/vmu2000.htm
-
-- Grandtec USB DVB-T
-        http://www.grand.com.tw/
-
-- Avermedia AverTV DVBT USB (2)
-        http://www.avermedia.com/
-
-- DiBcom USB DVB-T reference device (non-public)
-
-
-Supported devices USB2.0
-========================
-- Twinhan MagicBox II (2)
-        http://www.twinhan.com/product_terrestrial_7.asp
-
-- Hanftek UMT-010 (1)
-        http://www.globalsources.com/si/6008819757082/ProductDetail/Digital-TV/product_id-100046529
-
-- Typhoon/Yakumo/HAMA DVB-T mobile USB2.0 (1)
-        http://www.yakumo.de/produkte/index.php?pid=1&ag=DVB-T
-
-- Artec T1 USB TVBOX (FX2) (2)
-
-- Hauppauge WinTV NOVA-T USB2
-        http://www.hauppauge.com/
-
-- KWorld/ADSTech Instant DVB-T USB2.0 (DiB3000M-B)
-
-- DiBcom USB2.0 DVB-T reference device (non-public)
-
-1) It is working almost.
-2) No test reports received yet.
-
-
-0. NEWS:
-  2005-02-11 - added support for the KWorld/ADSTech Instant DVB-T USB2.0. Thanks a lot to Joachim von Caron
-  2005-02-02 - added support for the Hauppauge Win-TV Nova-T USB2
-  2005-01-31 - distorted streaming is finally gone for USB1.1 devices
-  2005-01-13 - moved the mirrored pid_filter_table back to dvb-dibusb
-             - first almost working version for HanfTek UMT-010
-             - found out, that Yakumo/HAMA/Typhoon are predessors of the HanfTek UMT-010
-  2005-01-10 - refactoring completed, now everything is very delightful
-             - tuner quirks for some weird devices (Artec T1 AN2235 device has sometimes a
-               Panasonic Tuner assembled). Tunerprobing implemented. Thanks a lot to Gunnar Wittich.
-  2004-12-29 - after several days of struggling around bug of no returning URBs fixed.
-  2004-12-26 - refactored the dibusb-driver, splitted into separate files
-             - i2c-probing enabled
-  2004-12-06 - possibility for demod i2c-address probing
-             - new usb IDs (Compro,Artec)
-  2004-11-23 - merged changes from DiB3000MC_ver2.1
-             - revised the debugging
-             - possibility to deliver the complete TS for USB2.0
-  2004-11-21 - first working version of the dib3000mc/p frontend driver.
-  2004-11-12 - added additional remote control keys. Thanks to Uwe Hanke.
-  2004-11-07 - added remote control support. Thanks to David Matthews.
-  2004-11-05 - added support for a new devices (Grandtec/Avermedia/Artec)
-             - merged my changes (for dib3000mb/dibusb) to the FE_REFACTORING, because it became HEAD
-             - moved transfer control (pid filter, fifo control) from usb driver to frontend, it seems
-               better settled there (added xfer_ops-struct)
-             - created a common files for frontends (mc/p/mb)
-  2004-09-28 - added support for a new device (Unkown, vendor ID is Hyper-Paltek)
-  2004-09-20 - added support for a new device (Compro DVB-U2000), thanks
-               to Amaury Demol for reporting
-             - changed usb TS transfer method (several urbs, stopping transfer
-               before setting a new pid)
-  2004-09-13 - added support for a new device (Artec T1 USB TVBOX), thanks
-               to Christian Motschke for reporting
-  2004-09-05 - released the dibusb device and dib3000mb-frontend driver
-
-  (old news for vp7041.c)
-  2004-07-15 - found out, by accident, that the device has a TUA6010XS for
-               PLL
-  2004-07-12 - figured out, that the driver should also work with the
-               CTS Portable (Chinese Television System)
-  2004-07-08 - firmware-extraction-2.422-problem solved, driver is now working
-               properly with firmware extracted from 2.422
-                         - #if for 2.6.4 (dvb), compile issue
-                         - changed firmware handling, see vp7041.txt sec 1.1
-  2004-07-02 - some tuner modifications, v0.1, cleanups, first public
-  2004-06-28 - now using the dvb_dmx_swfilter_packets, everything
-               runs fine now
-  2004-06-27 - able to watch and switching channels (pre-alpha)
-             - no section filtering yet
-  2004-06-06 - first TS received, but kernel oops :/
-  2004-05-14 - firmware loader is working
-  2004-05-11 - start writing the driver
-
-1. How to use?
-NOTE: This driver was developed using Linux 2.6.6.,
-it is working with 2.6.7 and above.
-
-Linux 2.4.x support is not planned, but patches are very welcome.
-
-NOTE: I'm using Debian testing, so the following explaination (especially
-the hotplug-path) needn't match your system, but probably it will :).
-
-The driver is included in the kernel since Linux 2.6.10.
-
-1.1. Firmware
-
-The USB driver needs to download a firmware to start working.
-
-You can either use "get_dvb_firmware dibusb" to download the firmware or you
-can get it directly via
-
-for USB1.1 (AN2135)
-http://www.linuxtv.org/downloads/firmware/dvb-dibusb-5.0.0.11.fw
-
-for USB1.1 (AN2235) (a few Artec T1 devices)
-http://www.linuxtv.org/downloads/firmware/dvb-dibusb-an2235-1.fw
-
-for USB2.0 (FX2) Hauppauge, DiBcom
-http://www.linuxtv.org/downloads/firmware/dvb-dibusb-6.0.0.5.fw
-
-for USB2.0 ADSTech/Kworld USB2.0
-http://www.linuxtv.org/downloads/firmware/dvb-dibusb-adstech-usb2-1.fw
-
-for USB2.0 HanfTek
-http://www.linuxtv.org/downloads/firmware/dvb-dibusb-an2235-1.fw
-
-
-1.2. Compiling
-
-Since the driver is in the linux kernel, activating the driver in
-your favorite config-environment should sufficient. I recommend
-to compile the driver as module. Hotplug does the rest.
-
-1.3. Loading the drivers
-
-Hotplug is able to load the driver, when it is needed (because you plugged
-in the device).
-
-If you want to enable debug output, you have to load the driver manually and
-from withing the dvb-kernel cvs repository.
-
-first have a look, which debug level are available:
-
-modinfo dib3000mb
-modinfo dib3000-common
-modinfo dib3000mc
-modinfo dvb-dibusb
-
-modprobe dib3000-common debug=<level>
-modprobe dib3000mb debug=<level>
-modprobe dib3000mc debug=<level>
-modprobe dvb-dibusb debug=<level>
-
-should do the trick.
-
-When the driver is loaded successfully, the firmware file was in
-the right place and the device is connected, the "Power"-LED should be
-turned on.
-
-At this point you should be able to start a dvb-capable application. For myself
-I used mplayer, dvbscan, tzap and kaxtv, they are working. Using the device
-in vdr is working now also.
-
-2. Known problems and bugs
-
-- Don't remove the USB device while running an DVB application, your system will die.
-
-2.1. Adding support for devices
-
-It is not possible to determine the range of devices based on the DiBcom
-reference designs. This is because the reference design of DiBcom can be sold
-to thirds, without telling DiBcom (so done with the Twinhan VP7041 and
-the HAMA device).
-
-When you think you have a device like this and the driver does not recognizes it,
-please send the ****load*.inf and the ****cap*.inf of the Windows driver to me.
-
-Sometimes the Vendor or Product ID is identical to the ones of Twinhan, even
-though it is not a Twinhan device (e.g. HAMA), then please send me the name
-of the device. I will add it to this list in order to make this clear to
-others.
-
-If you are familar with C you can also add the VID and PID of the device to
-the dvb-dibusb-core.c-file and create a patch and send it over to me or to
-the linux-dvb mailing list, _after_ you have tried compiling and modprobing
-it.
-
-2.2. USB1.1 Bandwidth limitation
-
-Most of the currently supported devices are USB1.1 and thus they have a
-maximum bandwidth of about 5-6 MBit/s when connected to a USB2.0 hub.
-This is not enough for receiving the complete transport stream of a
-DVB-T channel (which can be about 16 MBit/s). Normally this is not a
-problem, if you only want to watch TV (this does not apply for HDTV),
-but watching a channel while recording another channel on the same
-frequency simply does not work very well. This applies to all USB1.1
-DVB-T devices, not just dibusb)
-
-Update: For the USB1.1 and VDR some work has been done (patches and comments
-are still very welcome). Maybe the problem is solved in the meantime because I
-now use the dmx_sw_filter function instead of dmx_sw_filter_packet. I hope the
-linux-dvb software filter is able to get the best of the garbled TS.
-
-The bug, where the TS is distorted by a heavy usage of the device is gone
-definitely. All dibusb-devices I was using (Twinhan, Kworld, DiBcom) are
-working like charm now with VDR. Sometimes I even was able to record a channel
-and watch another one.
-
-2.3. Comments
-
-Patches, comments and suggestions are very very welcome.
-
-3. Acknowledgements
-        Amaury Demol (ademol@dibcom.fr) and Francois Kanounnikoff from DiBcom for
-    providing specs, code and help, on which the dvb-dibusb, dib3000mb and
-    dib3000mc are based.
-
-   David Matthews for identifying a new device type (Artec T1 with AN2235)
-    and for extending dibusb with remote control event handling. Thank you.
-
-   Alex Woods for frequently answering question about usb and dvb
-    stuff, a big thank you.
-
-   Bernd Wagner for helping with huge bug reports and discussions.
-
-   Gunnar Wittich and Joachim von Caron for their trust for giving me
-    root-shells on their machines to implement support for new devices.
-
-   Some guys on the linux-dvb mailing list for encouraging me
-
-   Peter Schildmann >peter.schildmann-nospam-at-web.de< for his
-    user-level firmware loader, which saves a lot of time
-    (when writing the vp7041 driver)
-
-   Ulf Hermenau for helping me out with traditional chinese.
-
-   André Smoktun and Christian Frömmel for supporting me with
-    hardware and listening to my problems very patient