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by M33P
Tue Jul 09, 2013 11:18 am
Forum: Troubleshooting
Topic: [SOLVED] Wireless no longer working - latest kernel?
Replies: 34
Views: 7705

Re: Wireless no longer working - latest kernel?

Hi. @joan and @samlu - this is probably due to the split_fiq implementation which has made its way into the "normal" rpi-updated kernels. - Please post the complete outputs of lsusb -v and dmesg (enclosed within tags) - What are you doing with the wifi/network link at the time when it stops working?...
by M33P
Sat Jun 29, 2013 4:23 pm
Forum: Camera board
Topic: Macro Mode
Replies: 1
Views: 615

Re: Macro Mode

Scrape away the glue with a roughened/blunted pin or similar. Most lenses have just one or two blobs but some have glue that flowed all round the thread.
by M33P
Sat Jun 22, 2013 11:02 pm
Forum: Troubleshooting
Topic: Raspberry Pi displays no power indicators (solved)
Replies: 8
Views: 1182

Re: Raspberry Pi displays no power indicators

If you get no blinkenlights, or even just bog standard lights, then your power supply has probably died. The red LED will usually illuminate even on an overcooked Pi (needs just 1.6V on the 5V line to start to glow).

Can you substitute the power supply for a new one?
by M33P
Sat Jun 22, 2013 10:09 pm
Forum: Troubleshooting
Topic: Raspberry Pi displays no power indicators (solved)
Replies: 8
Views: 1182

Re: Raspberry Pi displays no power indicators

Is the red LED not even lit?
by M33P
Sat Jun 22, 2013 10:07 pm
Forum: Camera board
Topic: low-level interfacing to OV5647
Replies: 98
Views: 37311

Re: low-level interfacing to OV5647

Good for them. May they enjoy their well-earned $billions. Thus proceeds the ancient, dismal economics of the computer biz. RPi depends on Linux, which was an escape from the IP encumbrances of UNIX, which was Bell Labs hackery to escape DEC and IBM. Flowers that have long since faded. As will thes...
by M33P
Sat Jun 22, 2013 7:30 pm
Forum: Troubleshooting
Topic: WinSCP. Copied file has size 0 Bytes
Replies: 4
Views: 2583

Re: WinSCP. Copied file has size 0 Bytes

Your swap file is only 100M (and this is the default size).

I suspect /var/log will be a bit large. Try a du -ch and see which directory is the largest.
by M33P
Sat Jun 22, 2013 7:26 pm
Forum: Troubleshooting
Topic: ssh with direct ethernet connection
Replies: 22
Views: 27322

Re: ssh with direct ethernet connection

The IP parameter looks like it needs multiple arguments. As an alternative, you could enable internet connection sharing (or whatever it's called under Windows these days) which should allow your laptop to act as a DHCP server and bridge to your local LAN from the ethernet side. You should then be a...
by M33P
Wed Jun 19, 2013 8:58 pm
Forum: Troubleshooting
Topic: xbian + motion + logitech c270
Replies: 4
Views: 3399

Re: xbian + motion + logitech c270

Apparently xbian ships their own kernels. There was a patch a while ago (to the source at https://github.com/raspberrypi/linux) that gave much better results with webcams such as the one you are trying to use. If you do cat /etc/apt/sources.list and if it contains the line deb http://mirrordirector....
by M33P
Wed Jun 19, 2013 7:59 pm
Forum: Troubleshooting
Topic: xbian + motion + logitech c270
Replies: 4
Views: 3399

Re: xbian + motion + logitech c270

Are you using the latest rpi-update kernel? uname -a will tell you the current version.
by M33P
Mon Jun 10, 2013 7:48 pm
Forum: Troubleshooting
Topic: USB FIQ testing....
Replies: 181
Views: 71166

Re: USB FIQ testing....

@Mysterious That sound card appears to have quite an esoteric set of endpoints - the main problem is that they will have multiple packets per frame going in/out. This will result in drops in the default kernel (split transactions get dropped or missed scheduling which ends up having broken/garbled a...
by M33P
Sun Jun 09, 2013 9:54 pm
Forum: Troubleshooting
Topic: Raspberry Pi rev 2 with webcam crashing
Replies: 3
Views: 1804

Re: Raspberry Pi rev 2 with webcam crashing

...There are alternatives - you can power the Pi from a hub port which negates the need for a second adapter, or you can supply raw 5V directly to the GPIO. Thanks so much for the reply! That's what I suspected. I don't understand why the +5v and ground isn't just passed straight through to the USB...
by M33P
Sun Jun 09, 2013 9:46 pm
Forum: Troubleshooting
Topic: Ralink 3072 wifi problem
Replies: 30
Views: 10385

Re: Ralink 3072 wifi problem

Problem is with networking at this stage, not USB. I've got a fair idea of what can cause the hang so your device isn't unique in that regard. Is your wpa-supplicant.conf set up correctly? I assume it is since the atheros dongle connects and associates with the AP correctly. Is there a similar train...
by M33P
Sun Jun 09, 2013 8:56 am
Forum: Troubleshooting
Topic: USB FIQ testing....
Replies: 181
Views: 71166

Re: USB FIQ testing....

I tried this yesterday, and it has made a Sound-Blaster X-Fi Surround 5.1 Pro usable Previously it had lots of drop outs and clicks. Now I hope this fix will quickly find its way into raspbmc. Hi, I thought that the "Sound-Blaster X-Fi Surround 5.1 Pro" chipset might be similar to my "Sound-Blaster...
by M33P
Sat Jun 08, 2013 10:33 pm
Forum: Troubleshooting
Topic: Raspberry Pi rev 2 with webcam crashing
Replies: 3
Views: 1804

Re: Raspberry Pi rev 2 with webcam crashing

The polyfuse F3 is the culprit. It sits immediately downstream of the Pi's micro-USB power port and has a rated current of 700mA. For a model B, there is a nominal 300-500mA current draw without any activity or peripherals connected. If you plug a power-hungry USB peripheral into the Pi, the increas...
by M33P
Thu Jun 06, 2013 9:43 pm
Forum: Troubleshooting
Topic: USB redux
Replies: 514
Views: 198594

Re: USB redux

There is a potential defect in the driver that currently is very hard to trigger unless you're running fiq_split (and gsh checked in a patch for that branch to fix this anyway) - basically you have an infinitesimally small chance of the driver "losing track" of one of the 8 host channels in the hard...
by M33P
Thu Jun 06, 2013 9:30 pm
Forum: Troubleshooting
Topic: Rpi Crashing with Shared USB
Replies: 2
Views: 502

Re: Rpi Crashing with Shared USB

There's two things that strike me here: 1) Seeking inside files shared via SMB (movies) was previously a reliable method of crashing, and in fact led to a specific bugfix that dealt with memory corruption in the USB driver. This has been fixed for ages and (mostly) reliable, although you may eventua...
by M33P
Thu Jun 06, 2013 9:26 pm
Forum: Troubleshooting
Topic: USB redux
Replies: 514
Views: 198594

Re: USB redux

That's weird - there's been no significant update to the USB subsystem on the main branch for quite a while.

Your logs suggest a very long uptime before things started to go wrong (460,000 seconds - 5 days?) - did you reboot before or after a rpi-update to the latest version?
by M33P
Wed Jun 05, 2013 1:31 pm
Forum: Troubleshooting
Topic: Ralink 3072 wifi problem
Replies: 30
Views: 10385

Re: Ralink 3072 wifi problem

You have a duff hub. It also seems to be two cascaded 4-port hubs which is typical of cheaper multiport hubs. I would wager that the external power supply that came with the hub is worth its weight in mud - causing your device to have trouble. Low-speed mice and keyboards are required to support low...
by M33P
Tue Jun 04, 2013 9:35 pm
Forum: Troubleshooting
Topic: Ralink 3072 wifi problem
Replies: 30
Views: 10385

Re: Ralink 3072 wifi problem

Is the same behaviour exhibited when you plug the dongle directly into the Pi (with no hub or ethernet connected)?

With the dongle plugged into the Pi, can you measure the TP1-TP2 voltage with a multimeter during boot and report back.
by M33P
Tue Jun 04, 2013 8:11 pm
Forum: Troubleshooting
Topic: Ralink 3072 wifi problem
Replies: 30
Views: 10385

Re: Ralink 3072 wifi problem

When you say "powered USB port", what exactly powers it?
by M33P
Tue Jun 04, 2013 7:41 pm
Forum: Troubleshooting
Topic: USB HID failing to install on Rasp Pi wheezy since upgrade
Replies: 6
Views: 2710

Re: USB HID failing to install on Rasp Pi wheezy since upgra

Wierd. I have a USB HID device that does (almost) exactly this and hangs for 10 seconds while booting - on the HID call to initializing reports (which is a USB control transaction). Quirks fixes it...

I'd be interested to know the results of the comparison of the two rpi-update versions I posted.
by M33P
Tue Jun 04, 2013 6:04 pm
Forum: Camera board
Topic: How to map additional info to the camera stream
Replies: 4
Views: 1286

Re: How to map additional info to the camera stream

You can add arbitrary exif tags to the output of raspistill (jpg mode) at least. Look at the -x commandline tag. In terms of embedding data into a video stream, work was being done recently on a "text overlay" (gpu-side driven) that would allow insertion of arbitrary text overlaid on top of the vide...
by M33P
Tue Jun 04, 2013 8:16 am
Forum: Advanced users
Topic: SD activity after power off
Replies: 13
Views: 2231

Re: SD activity after power off

The Pi doesn't actually shut down. It reboots but with a specific "reason code" embedded into the watchdog registers which subsequently causes the firmware to halt booting very early in the process. It will blink the LED (6?) times when it reaches this state. Check out arch/arm/mach-bcm2708/bcm2708....
by M33P
Mon Jun 03, 2013 10:04 pm
Forum: Troubleshooting
Topic: USB HID failing to install on Rasp Pi wheezy since upgrade
Replies: 6
Views: 2710

Re: USB HID failing to install on Rasp Pi wheezy since upgra

Did you try adding the quirks in cmdline.txt? No need to boot with the device plugged in, the timeout message should no longer appear in either case. Given that you say the device worked with #371 and not #456 then something broke along the way... Please back up the /boot partition of your SD card, ...
by M33P
Mon Jun 03, 2013 5:08 pm
Forum: Troubleshooting
Topic: USB HID failing to install on Rasp Pi wheezy since upgrade
Replies: 6
Views: 2710

Re: USB HID failing to install on Rasp Pi wheezy since upgra

What version did you update from (or what was your Wheezy image release date, assuming you never updated the kernel) and what version are you now running? To get current version of kernel do uname -a To find the previous version, assuming you have not upgraded by re-imaging your SD card, do grep "Li...

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