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by DAFlippers
Tue May 05, 2015 10:53 am
Forum: Windows 10 for IoT
Topic: How to install Windows 10 on Raspberry Pi 2B?
Replies: 22
Views: 157458

Re: How to install Windows 10 on Raspberry Pi 2B?

Feedback at https://connect.microsoft.com/windowsembeddedIoT/Feedback. The image should be released as an image file and not rely on a Win 10 installation to deploy the image. A few gotchas like you can't shutdown - always restarts and if you change the computer name you need add to trusted hosts on...
by DAFlippers
Wed May 15, 2013 4:40 pm
Forum: Camera board
Topic: My Camera arrived today... what now?
Replies: 108
Views: 30245

Re: My Camera arrived today... what now?

Probably due to some people ordering two... :oops:

David

P.S. They both work fine.
by DAFlippers
Wed May 15, 2013 3:35 pm
Forum: Camera board
Topic: My Camera arrived today... what now?
Replies: 108
Views: 30245

Re: My Camera arrived today... what now?

Working nicely - /opt/vc/bin/raspivid -p 10,10,192,108 -vf -t 10000

It took me a while to get the usage arguments - /opt/vc/bin/raspivid

David
by DAFlippers
Wed May 15, 2013 3:05 pm
Forum: Camera board
Topic: My Camera arrived today... what now?
Replies: 108
Views: 30245

Re: My Camera arrived today... what now?

James,

As always, you are a star.

David
by DAFlippers
Wed May 15, 2013 2:53 pm
Forum: Camera board
Topic: My Camera arrived today... what now?
Replies: 108
Views: 30245

Re: My Camera arrived today... what now?

I'm running 3.6.11+ #450 PREEEMPT Tue 14 May and having enabled the camera I can get video by running /opt/vc/bin/raspivid -d -t 100000 in a root terminal. The video is mirror image and tends to change colour or breakup or similar. I know it isn't the camera because I rather cheekily made my order f...
by DAFlippers
Thu Jan 17, 2013 10:42 am
Forum: Troubleshooting
Topic: USB packet loss.
Replies: 253
Views: 73225

Re: USB packet loss.

There is now someone working full time on the USB driver. Still no schedule though. I'll ask him what his expectations are.
Great to hear. I just tested my code on latest build and the USB does appear more robust but still misses reads.

David
by DAFlippers
Mon Aug 20, 2012 4:42 pm
Forum: Troubleshooting
Topic: USB - the Elephant in our Room
Replies: 802
Views: 273627

Re: USB - the Elephant in our Room

And my point is that that *is* the correct use of github, that having to wait a week for volunteers to be able to look at your specific issue is not (lamentably) weird. Would it be too much to ask for the message "it might take up to 14 days before you see a response...." to be sent to the poster o...
by DAFlippers
Mon Aug 20, 2012 3:50 pm
Forum: Troubleshooting
Topic: USB - the Elephant in our Room
Replies: 802
Views: 273627

Re: USB - the Elephant in our Room

First github *is* the right place, the suggestion is just to post here as well ;-) which is what I was doing....;-) As for the frustration caused by the wait... welcome to linux :lol: There isn't a division of highly paid computer programmers working on the bugs that we're discovering. I totally un...
by DAFlippers
Mon Aug 20, 2012 2:50 pm
Forum: Troubleshooting
Topic: USB - the Elephant in our Room
Replies: 802
Views: 273627

Re: USB - the Elephant in our Room

No, I suggested you post on github, where entries are read, even if they don't appear to have any ownership. Or posting them here was if you could'nt be bothered to go back to github - just trying to save you time! This thread is basically where lots of stuff is happening at the moment, so is a goo...
by DAFlippers
Mon Aug 20, 2012 1:16 pm
Forum: Troubleshooting
Topic: USB - the Elephant in our Room
Replies: 802
Views: 273627

Re: USB - the Elephant in our Room

If you have more details I would suggest updating the github entry with them. Or posting them here. Hi James, I have posted what I think is relevant on github but I assumed that if someone was picking up ownership of the issue then I would be contacted for any further details I could give. Note tha...
by DAFlippers
Mon Aug 20, 2012 12:45 pm
Forum: Troubleshooting
Topic: USB - the Elephant in our Room
Replies: 802
Views: 273627

Re: USB - the Elephant in our Room

https://github.com/raspberrypi/linux/issues/79 I have repeated testing following update to Linux version 3.2.27+ #24 PREEMPT and I still see the same problem with libusb_interrupt_transfer calls so this issue is not resolved. My setup is very simple: RPi, Wired Ethernet connection, HDMI -> DVI conne...
by DAFlippers
Mon Aug 13, 2012 8:02 pm
Forum: Troubleshooting
Topic: USB packet loss.
Replies: 253
Views: 73225

Re: USB packet loss.

jbeale wrote: But to be sure, I doubt people are trying to hang several 7-port hubs, or a Kinect, off the Ruku2's USB hub...

Precisely.

David
by DAFlippers
Mon Aug 13, 2012 6:11 pm
Forum: Troubleshooting
Topic: USB - the Elephant in our Room
Replies: 802
Views: 273627

Re: USB - the Elephant in our Room

... Periodic endpoints are hubs (for the most part), mice, keyboards, hard drives etc don't count. so you are limited to 2 7-port-hubs for a total of 14 devices. (I have only tested 2 hubs and 8 devices at once, but 14 should work) Aren't Video and Audio periodic? If so Kinect has at least 3 so mor...
by DAFlippers
Mon Aug 13, 2012 1:56 pm
Forum: Troubleshooting
Topic: USB packet loss.
Replies: 253
Views: 73225

Re: USB packet loss.

The Roku2 uses the 2835. From Cnet review: ".... the Roku 2 XS also include a USB port on the right side. Supported media includes MP4 (H.264) video, AAC and MP3 audio, and JPEG and PNG photos". "The bad: .... and USB file support is very limited". So it has a host implementation but with very limi...
by DAFlippers
Mon Aug 13, 2012 1:23 pm
Forum: Troubleshooting
Topic: USB packet loss.
Replies: 253
Views: 73225

Re: USB packet loss.

All the current other uses of the 2835 seem to be fine - probably because they don't use the USB in the same way.It's an old chip - all new users are on different chips now (and again, don't usually use the USB in the same way) What other devices use the BCM2835 SoC? Perhaps the question should be ...
by DAFlippers
Mon Aug 13, 2012 9:28 am
Forum: Troubleshooting
Topic: USB - the Elephant in our Room
Replies: 802
Views: 273627

Re: USB - the Elephant in our Room

Also note that there is a deficiency in the driver which means we're limited currently to a maximum of 8 periodic endpoints, this is because the driver reserves a channel (of which there are eight) for each periodic endpoint. Now I believe that for each hub port you have at least one interrupt endp...
by DAFlippers
Sun Aug 12, 2012 12:04 pm
Forum: Automation, sensing and robotics
Topic: Kinect - Would it ever work with a Raspberry Pi?
Replies: 117
Views: 75814

Re: Kinect - Would it ever work with a Raspberry Pi?

But I'm no kernel or USB protocol expert, I don't how good is that technique compared to hardware USB sniffers. Thanks. Of course running the USB capture on a target platform has some disadvantages: 1 it will affect performance as it uses CPU and other resources on the target. 2 if there is an issu...
by DAFlippers
Sun Aug 12, 2012 11:08 am
Forum: Automation, sensing and robotics
Topic: Kinect - Would it ever work with a Raspberry Pi?
Replies: 117
Views: 75814

Re: Kinect - Would it ever work with a Raspberry Pi?

Also, could our problem with the Kinect be related to this reported bug ? References wavread output: https://dl.dropbox.com/u/10671464/wavread_allout.txt Wireshark USB Dumps: https://dl.dropbox.com/u/10671464/kinect_wireshark_dumps.rar Libfreenect USB Protocol Docs: http://openkinect.org/wiki/Proto...
by DAFlippers
Sat Aug 11, 2012 8:18 am
Forum: Troubleshooting
Topic: USB packet loss.
Replies: 253
Views: 73225

Re: USB packet loss.

Don't acknowledge the packet until the packet is on the device pipe? To drive the chip acknowledged on interrupt without a full buffer copy may cause such things. Also bad hardware flow control would cause this too. Copy before acknowledge on the interrupt front! Cheers Jacko I'm sure you are aware...
by DAFlippers
Sat Aug 11, 2012 8:11 am
Forum: Troubleshooting
Topic: USB packet loss.
Replies: 253
Views: 73225

Re: USB packet loss.

I'll post a detailed bug report but is it a firmware or Linux implementation issue - now that's the question. Doesn't really matter where you file it. USB is all handled by Linux kernel, so Linux is more appropriate. Being pedantic if the problem turns out to be in the Broadcom area then it is like...
by DAFlippers
Fri Aug 10, 2012 8:24 pm
Forum: Troubleshooting
Topic: USB packet loss.
Replies: 253
Views: 73225

Re: USB packet loss.

asb wrote:
It's particularly awesome if you can provide detailed bug reports (test cases are useful), and have the ability to compile and test patches.
I'll post a detailed bug report but is it a firmware or Linux implementation issue - now that's the question.

David
by DAFlippers
Fri Aug 10, 2012 8:10 pm
Forum: Troubleshooting
Topic: USB packet loss.
Replies: 253
Views: 73225

Re: USB packet loss.

But, there is progress, and the issue is being taken seriously, contrary to what some people seem to believe. I take from that there is an acknowledged issue and it is being investigated so I'll hold off on this work as I know my code runs on other hardware without a problem and await an update. BT...
by DAFlippers
Fri Aug 10, 2012 1:23 pm
Forum: Troubleshooting
Topic: USB packet loss.
Replies: 253
Views: 73225

Re: USB packet loss.

RaTTuS wrote: can you post on that thread and get some extra info going
Which thread?

David
by DAFlippers
Fri Aug 10, 2012 9:22 am
Forum: Troubleshooting
Topic: USB packet loss.
Replies: 253
Views: 73225

Re: USB packet loss.

I have a program that communicates over USB and code that works fine on ubuntu/suse but is not working on RPi. I have added debug to the code and monitored the USB transactions using an Ellisys USB Explorer and either there is a bug in the Libusb-1.0 ARM implementation or RPi handling. The problems ...

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