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+Documentation for dib3000* frontend drivers and dibusb device driver
+Copyright (C) 2004-5 Patrick Boettcher (firstname.lastname@example.org),
+dibusb and dib3000mb/mc drivers based on GPL code, which has
+Copyright (C) 2004 Amaury Demol for DiBcom (email@example.com)
+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)
+- TwinhanDTV Magic Box (VP7041e)
+- HAMA DVB-T USB device
+- CTS Portable (Chinese Television System) (2)
+- Unknown USB DVB-T device with vendor ID Hyper-Paltek
+Produced and reselled by KWorld:
+- KWorld V-Stream XPERT DTV DVB-T USB
+- JetWay DTV DVB-T USB
+- ADSTech Instant TV DVB-T USB
+- Ultima Electronic/Artec T1 USB TVBOX (AN2135, AN2235, AN2235 with Panasonic Tuner)
+- Compro Videomate DVB-U2000 - DVB-T USB (2)
+- Grandtec USB DVB-T
+- Avermedia AverTV DVBT USB (2)
+- DiBcom USB DVB-T reference device (non-public)
+Supported devices USB2.0
+- Twinhan MagicBox II (2)
+- Hanftek UMT-010 (1)
+- Typhoon/Yakumo/HAMA DVB-T mobile USB2.0 (1)
+- Artec T1 USB TVBOX (FX2) (2)
+- Hauppauge WinTV NOVA-T USB2
+- 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.
+ 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
+ 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.
+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)
+for USB1.1 (AN2235) (a few Artec T1 devices)
+for USB2.0 (FX2) Hauppauge, DiBcom
+for USB2.0 ADSTech/Kworld USB2.0
+for USB2.0 HanfTek
+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:
+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
+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
+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
+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.
+Patches, comments and suggestions are very very welcome.
+ Amaury Demol (firstname.lastname@example.org) 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