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by dsc3507
Mon Apr 22, 2019 7:54 am
Forum: Networking and servers
Topic: Raspberry pi 3 B+ as Access Point and Wifi client
Replies: 15
Views: 12527

Re: Raspberry pi 3 B+ as Access Point and Wifi client

Why not a hardware switch connected to a GPIO bit and monitored to determine AP or client status? So we need a script for AP or client depending on the switch position. You can use GPIO interrupt input to save having to poll.
by dsc3507
Wed Jun 29, 2016 4:24 am
Forum: General discussion
Topic: Pi3 wireless problem with phone hotspot
Replies: 0
Views: 438

Pi3 wireless problem with phone hotspot

I am having a problem with the Pi3 and wireless connections. I am using arch linux, wpa_supplicant. First of all let me say that I have absolutely no problem with home wifi wireless connections using either wpa-psk or no password and I understand the wpa_supplicant file. The problem arises when tryi...
by dsc3507
Fri Mar 21, 2014 3:27 am
Forum: Troubleshooting
Topic: Call for beta testers: FIQ_FSM USB driver rewrite
Replies: 250
Views: 108095

Re: Call for beta testers: FIQ_FSM USB driver rewrite

Adding to the above I would clarify that the sound has a modulated effect. Maybe like it is being sampled at a lower rate and missing some data.

Is there anything I can do to check this further? Look at interupts, etc.?
by dsc3507
Thu Mar 20, 2014 10:36 pm
Forum: Troubleshooting
Topic: Call for beta testers: FIQ_FSM USB driver rewrite
Replies: 250
Views: 108095

Re: Call for beta testers: FIQ_FSM USB driver rewrite

Ok I have a little more information. The output is to a CM119 DAC. Audio output is distorted but consistently distorted. It sounds like bits of the data are lost. It is not choppy. The audio is understandable but consistently distorted across the entire period. I have tried different codecs - I typi...
by dsc3507
Wed Mar 19, 2014 7:10 pm
Forum: Troubleshooting
Topic: Call for beta testers: FIQ_FSM USB driver rewrite
Replies: 250
Views: 108095

Re: Call for beta testers: FIQ_FSM USB driver rewrite

The CM119 has gpio pins. In my application one bit is used for PTT on a radio circuit. It is not responding correctly. At times it hangs in the on state. I suspect this is because in general output to the CM119 is missing data and therefore the distorted audio. Before the fiq_fix using 3.10.25+ I ha...
by dsc3507
Wed Mar 19, 2014 6:33 pm
Forum: Troubleshooting
Topic: Call for beta testers: FIQ_FSM USB driver rewrite
Replies: 250
Views: 108095

Re: Call for beta testers: FIQ_FSM USB driver rewrite

OK got this compiled up I should have listened to the original instructions. Anyhow I see marked improvement but I am still seeing breakup on my DAC and a serious problem with bits being set on the CM119 that are used for control. Are there any cmdline settings I can change to check further. I am us...
by dsc3507
Tue Mar 18, 2014 5:07 am
Forum: Troubleshooting
Topic: Call for beta testers: FIQ_FSM USB driver rewrite
Replies: 250
Views: 108095

Re: Call for beta testers: FIQ_FSM USB driver rewrite

>If you do a git clone https://github.com/raspberrypi/linux.git then git checkout rpi-3.10.y-next you will be on the branch that >contains fiq_fsm. >You can then do a make headers_install. >Alternatively you can take the commits on the top of that branch as a patch and apply it to your own repositor...
by dsc3507
Fri Mar 14, 2014 4:07 am
Forum: Troubleshooting
Topic: Call for beta testers: FIQ_FSM USB driver rewrite
Replies: 250
Views: 108095

Re: Call for beta testers: FIQ_FSM USB driver rewrite

I would like to try this out but I need to compile some local code against the kernel to do that. Is the kernel source available for the rewrite or is there a patch I can apply to what I am currently using. I have the kernel source and I am currently compiled for 3.10.25+ from Jan 7, 2014.
by dsc3507
Tue Mar 11, 2014 3:03 am
Forum: Raspbian
Topic: USB sound issues
Replies: 10
Views: 2534

Re: USB sound issues

The only thing that helped me is using -

dwc_otg.speed=1 in /boot/cmdline.txt

This is a hack fix as it puts the USB in 1.1 mode and slows the Ethernet speed also. Until the release has a fix that might work for you.
by dsc3507
Tue Mar 11, 2014 2:59 am
Forum: Raspbian
Topic: USB sound issues
Replies: 10
Views: 2534

Re: USB sound issues

>There are problems with the USB driver on the 12-24-13 and later releases of Wheezy. >Grab the 9-25-13 image and use that. >http://downloads.raspberrypi.org/raspbi ... spbian.zip >I'll bet all your problems magically disappear. :lol: I believe you but I also need the source as I need to compile mod...
by dsc3507
Mon Mar 10, 2014 4:17 am
Forum: Raspbian
Topic: Checking file system
Replies: 3
Views: 2028

Re: Checking file system

I researched this and I think I can answer my own question on this unless someone else has a better answer. When you do a force file check at boot it does it on an unmounted root filesystem and it cannot write to a file on the SD card. I often see it written that /var/log/fsck or some such is where ...
by dsc3507
Mon Mar 10, 2014 12:49 am
Forum: Raspbian
Topic: USB sound issues
Replies: 10
Views: 2534

Re: USB sound issues

No this is definitely an audio/USB problem and has nothing or little to do with the network although the network being on the USB would certainly make it worse. The problem appears for me just as much when writing to the DAC with no network traffic as when there is traffic. Also there is no disk IO ...
by dsc3507
Sun Mar 09, 2014 10:06 pm
Forum: Raspbian
Topic: Checking file system
Replies: 3
Views: 2028

Re: Checking file system

Thanks. That fixed the insignificant fat error but what about the overall file check questions?
by dsc3507
Sun Mar 09, 2014 9:40 pm
Forum: Raspbian
Topic: Checking file system
Replies: 3
Views: 2028

Checking file system

First off I have never had an SD card failure in using many Pi systems run 24/7. One for almost a year. That being said this morning I found one system giving read/write errors and read only errors with lots of errors in the log. I figured I had lost an SD card but after a reboot all was fine. Not s...
by dsc3507
Sat Mar 08, 2014 4:00 pm
Forum: Troubleshooting
Topic: Call for beta testers: FIQ_FSM USB driver rewrite
Replies: 250
Views: 108095

Re: Call for beta testers: FIQ_FSM USB driver rewrite

Thank you for the explanation and history. I also want to thank those who are involved in fixing the problem. Based on my current problem of - 2.0 USB sound device at relatively low speed - sample rate of 40-50khz and being forced to use USB 1.1 to make it work properly. Is it reasonable to say this...
by dsc3507
Sat Mar 08, 2014 6:14 am
Forum: Troubleshooting
Topic: Call for beta testers: FIQ_FSM USB driver rewrite
Replies: 250
Views: 108095

Re: Call for beta testers: FIQ_FSM USB driver rewrite

I have a question regarding this driver rewrite and in general the history of USB sound problems in the Pi. I am using a CM108 type sound FOB in a VOIP application and having lots of problems on the DAC side. The only way I can get it to work without a lot of distortion s using the usb 1.1 mode whic...
by dsc3507
Thu Mar 06, 2014 8:43 am
Forum: Raspbian
Topic: Compile times
Replies: 4
Views: 812

Compile times

I was wondering how long it takes to cross compile the raspbien kernel on a fast processor? It took me over 12 hours on the Pi. Not something I do that often and it can just go overnight but I just wanted to see the comparison.
by dsc3507
Wed Mar 05, 2014 3:43 pm
Forum: General discussion
Topic: Kickstarter: Save your SD Card project
Replies: 10
Views: 3268

Re: Kickstarter: Save your SD Card project

Is this project dead?
by dsc3507
Tue Mar 04, 2014 7:46 pm
Forum: Raspbian
Topic: USB sound issues
Replies: 10
Views: 2534

Re: USB sound issues

This is a headless system but unfortunately it is a voip type connection which simultaneously uses usb audio and ethernet. There is only one USB port being used for the sound. Maybe the code I am using is not written well because apparently Pi's are being used for streaming multimedia applications f...
by dsc3507
Tue Mar 04, 2014 6:25 am
Forum: Raspbian
Topic: USB sound issues
Replies: 10
Views: 2534

USB sound issues

I am using the January 7, 2014 dated 3.10.25+ kernel release of Raspbien. I am using a USB audio device and I am having problems using the usb full speed mode. Although this seems improved from earlier kernels I still seem to need to use the high speed usb mode - dwc_otg.speed=1 - to get good audio ...
by dsc3507
Tue Mar 04, 2014 5:45 am
Forum: Arch
Topic: The weirdest problem
Replies: 4
Views: 2447

Re: The weirdest problem

I have Allstar fully working on the Pi in Raspbien if anyone is interested.
by dsc3507
Wed Feb 26, 2014 5:24 pm
Forum: C/C++
Topic: dahdi compile problem
Replies: 3
Views: 1967

Re: dahdi compile problem

Going to forward an answer I got from Asterisk list that works! Odd...if it is only kzalloc, kmalloc, etc.. I wonder if it is resolved if you include linux/slab.h in include/dahdi/kernel.h. Something like: diff --git a/include/dahdi/kernel.h b/include/dahdi/kernel.h index f2f9ec5..c19aec5 100644 ---...
by dsc3507
Wed Feb 26, 2014 5:23 pm
Forum: Raspbian
Topic: dahdi compile problem with raspbien
Replies: 2
Views: 1042

Re: dahdi compile problem with raspbien

Going to repeat answer I got from Asterisk list that works! Odd...if it is only kzalloc, kmalloc, etc.. I wonder if it is resolved if you include linux/slab.h in include/dahdi/kernel.h. Something like: diff --git a/include/dahdi/kernel.h b/include/dahdi/kernel.h index f2f9ec5..c19aec5 100644 --- a/i...
by dsc3507
Wed Feb 26, 2014 3:36 pm
Forum: C/C++
Topic: dahdi compile problem
Replies: 3
Views: 1967

dahdi compile problem

I posted this in Raspbien os but maybe someone here could help - I am having trouble compiling dahdi-linux-complete-2.9.0+2.9.0.1 on a Raspbien 3.10.25+ kernel. I get the following error - /usr/src/dahdi-linux-complete-2.9.0+2.9.0.1/linux/drivers/dahdi/dahdi-base.c:570:2: error: implicit declaration...
by dsc3507
Wed Feb 26, 2014 8:44 am
Forum: Raspbian
Topic: dahdi compile problem with raspbien
Replies: 2
Views: 1042

dahdi compile problem with raspbien

I am having trouble compiling dahdi-linux-complete-2.9.0+2.9.0.1 on a Raspbien 3.10.25+ kernel. I get the following error - /usr/src/dahdi-linux-complete-2.9.0+2.9.0.1/linux/drivers/dahdi/dahdi-base.c:570:2: error: implicit declaration of function kzalloc [-Werror=implicit-function-declaration] /usr...

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