On Sat, 2012-05-05 at 22:42 -0500, Rob Landley wrote: > On 05/05/2012 09:10 PM, Shawn Landden wrote: > > Quite keen I wanted to put the driver (with some quirks of course) into dibusb. > > -After reading some specs and doing some USB snooping, it realized, that the > > +After reading some specs and doing some USB snooping, I realized, that the > > dibusb-driver would be a complete mess afterwards. So I decided to do it in a > > different way: With the help of a dvb-usb-framework. > > But not taking out the comma after realized? done > > > @@ -115,7 +115,7 @@ http://www.linuxtv.org/wiki/index.php/DVB_USB > > 1. How to use? > > 1.1. Firmware > > > > -Most of the USB drivers need to download a firmware to the device before start > > +Most of the USB drivers need you to download a firmware to the device before start > > working. > > The driver needs to download the firmware. The user presumaby isn't > doing this manually. And "before start working" isn't entirely english > either. before start working was fixed later, fixed > > > Have a look at the Wikipage for the DVB-USB-drivers to find out, which firmware > > @@ -127,7 +127,7 @@ http://www.linuxtv.org/wiki/index.php/DVB_USB > > > > 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. > > +compiling the driver as module. Hotplug does the rest. > > as a module? fixed > > > If you use dvb-kernel enter the build-2.6 directory run 'make' and 'insmod.sh > > load' afterwards. > > Rob -- -Shawn Landden
>From 9bf4ff12f238a843cb1f3c082ca5eb3dafee426c Mon Sep 17 00:00:00 2001 From: Shawn Landden <shawnlandden@xxxxxxxxx> Date: Sat, 5 May 2012 19:03:27 -0700 Subject: [PATCH] Documentation: fix up Documentation/dvb/README.dvb-usb Signed-off-by: Shawn Landden <shawnlandden@xxxxxxxxx> --- Documentation/dvb/README.dvb-usb | 40 +++++++++++++++++++------------------- 1 file changed, 20 insertions(+), 20 deletions(-) diff --git a/Documentation/dvb/README.dvb-usb b/Documentation/dvb/README.dvb-usb index c4d963a..7e57501 100644 --- a/Documentation/dvb/README.dvb-usb +++ b/Documentation/dvb/README.dvb-usb @@ -6,7 +6,7 @@ Idea behind the dvb-usb-framework In March 2005 I got the new Twinhan USB2.0 DVB-T device. They provided specs and a firmware. Quite keen I wanted to put the driver (with some quirks of course) into dibusb. -After reading some specs and doing some USB snooping, it realized, that the +After reading some specs and doing some USB snooping, I realized, that the dibusb-driver would be a complete mess afterwards. So I decided to do it in a different way: With the help of a dvb-usb-framework. @@ -115,8 +115,8 @@ http://www.linuxtv.org/wiki/index.php/DVB_USB 1. How to use? 1.1. Firmware -Most of the USB drivers need to download a firmware to the device before start -working. +Most of the USB drivers need a firmware upload before they +work. Have a look at the Wikipage for the DVB-USB-drivers to find out, which firmware you need for your device: @@ -127,7 +127,7 @@ http://www.linuxtv.org/wiki/index.php/DVB_USB 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. +compiling the driver as a module. Hotplug does the rest. If you use dvb-kernel enter the build-2.6 directory run 'make' and 'insmod.sh load' afterwards. @@ -140,7 +140,7 @@ in the device). If you want to enable debug output, you have to load the driver manually and from within the dvb-kernel cvs repository. -first have a look, which debug level are available: +First have a look, at which debug levels are available: modinfo dvb-usb modinfo dvb-usb-vp7045 @@ -152,18 +152,18 @@ etc. 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. +When the driver loads successfully, the firmware file is in +the right place and the device is connected, the "Power"-LED should +turn on. -At this point you should be able to start a dvb-capable application. I'm use -(t|s)zap, mplayer and dvbscan to test the basics. VDR-xine provides the -long-term test scenario. +At this point you should dvb applications should work. I use +(t|s)zap, mplayer and dvbscan to test basic functionality. More testing is +done with VDR-xine. 2. Known problems and bugs - Don't remove the USB device while running an DVB application, your system - will go crazy or die most likely. + may crash. 2.1. Adding support for devices @@ -171,23 +171,23 @@ TODO 2.2. USB1.1 Bandwidth limitation -A lot 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. +A lot of the currently supported devices are USB1.1 and thus have a +maximum bandwidth of ~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 is 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 +frequency simply does not work very well. (This applies to all USB1.1 DVB-T devices, not just the dvb-usb-devices) -The bug, where the TS is distorted by a heavy usage of the device is gone -definitely. All dvb-usb-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. +A bug where the TS is distorted by a heavy usage of the device has been +squashed. All dvb-usb-devices I was using (Twinhan, Kworld, DiBcom) are +now working like charm with VDR. Sometimes I even was able to record a channel +will simultameously watching another one. 2.3. Comments -Patches, comments and suggestions are very very welcome. +Patches, comments and suggestions are very welcome. 3. Acknowledgements Amaury Demol (ademol@xxxxxxxxx) and Francois Kanounnikoff from DiBcom for -- 1.7.9.5
