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by vicary
Tue Aug 04, 2020 1:21 pm
Forum: Troubleshooting
Topic: temporary failure in name resolution
Replies: 10
Views: 43567

Re: temporary failure in name resolution

spoenq wrote:
Tue Aug 20, 2019 7:27 pm
For anybody coming here from a PiHole it might be the DNSSEC setting that is not resolving, turning off DNSSEC via the web gui did the trick for me.
This worked for me, thanks! :D
by vicary
Fri Dec 13, 2019 2:38 am
Forum: Troubleshooting
Topic: [Pi4] Wireless Keyboard (Dongle) not detected on reboot - need to unplug/replug dongle
Replies: 8
Views: 1914

Re: [Pi4] Wireless Keyboard (Dongle) not detected on reboot - need to unplug/replug dongle

Having this issue on my Pi 0, 1, 2B, 3B+ and 4, lived with it for a few years but still kind of annoying.

It happens on both Raspbian and Arch, haven't tried other distros yet.
by vicary
Tue Mar 27, 2018 8:57 pm
Forum: Device Tree
Topic: Possibility for multiple instances of LIRC?
Replies: 42
Views: 19295

Re: Possibility for multiple instances of LIRC?

Not sure if pwm-ir-tx works the same way as gpio-ir-tx do.

AFAIK when LIRC records in raw mode it spits out a format that looks very much like the examples in ir-ctl.

See the file sending option here
https://www.mankier.com/1/ir-ctl
by vicary
Wed Feb 28, 2018 4:06 pm
Forum: Device Tree
Topic: Possibility for multiple instances of LIRC?
Replies: 42
Views: 19295

Re: Possibility for multiple instances of LIRC?

OH MY GAWD you nailed it, input events are popping up when I use a second Pi0 for blasting!

That means I'll have do create some switching protocol to work with 8 channels, and even if it works a single round of effective 4-way communication could easily cost minutes... :roll:
by vicary
Wed Feb 28, 2018 1:53 pm
Forum: Device Tree
Topic: Possibility for multiple instances of LIRC?
Replies: 42
Views: 19295

Re: Possibility for multiple instances of LIRC?

I just did a fresh install of Raspbian Lite, upgraded kernel and built v4l-utils gain; No luck. :|
by vicary
Wed Feb 28, 2018 11:02 am
Forum: Device Tree
Topic: Possibility for multiple instances of LIRC?
Replies: 42
Views: 19295

Re: Possibility for multiple instances of LIRC?

Just done compiling, using the new ir-keytable still yields nothing. $ v4l-utils-1.14.2/utils/keytable/ir-keytable Found /sys/class/rc/rc0/ (/dev/input/event0) with: Driver: gpio-rc-recv, table: rc-alink-dtu-m lirc device: /dev/lirc0 Supported protocols: lirc rc-5 rc-5-sz jvc sony nec sanyo mce_kbd ...
by vicary
Wed Feb 28, 2018 7:40 am
Forum: Device Tree
Topic: Possibility for multiple instances of LIRC?
Replies: 42
Views: 19295

Re: Possibility for multiple instances of LIRC?

Following up my tests regarding this thread , not sure if I should post there instead, please let me know. My initial test is to have one of the gpio-ir device receiving KEY_* events from the same transceiver under a gpio-ir-tx driver instance, I am simplifying the case down to one transceiver at th...
by vicary
Tue Feb 27, 2018 7:23 pm
Forum: Device Tree
Topic: Possibility for multiple instances of LIRC?
Replies: 42
Views: 19295

Re: Possibility for multiple instances of LIRC?

... If I understand you correctly your goal is not to control household equipment via IR but to transmit some data. In this case you probably don't need the IR scancode to linux input code mapping but can just deal with scancodes. i.e. use ir-ctl to transmit scancodes using some protocol (eg "ir-ct...
by vicary
Wed Feb 21, 2018 4:38 am
Forum: Device Tree
Topic: Possibility for multiple instances of LIRC?
Replies: 42
Views: 19295

Re: Possibility for multiple instances of LIRC?

I have made both ir-ctl and ir-keytable working, managing key maps require more works but it still works. Thanks for your help! If you mean the ircomm protocol driver in the kernel - this has nothing to do with infrared remotes. The ircomm protocol emulates a serial port on IRDA interfaces. Yes. IrC...
by vicary
Tue Feb 20, 2018 4:04 am
Forum: Device Tree
Topic: Possibility for multiple instances of LIRC?
Replies: 42
Views: 19295

Re: Possibility for multiple instances of LIRC?

A little more searching I found IrCOMM, and it in fact does most of the things out of the box. *ouch*

Will it work with the new drivers?
by vicary
Mon Feb 19, 2018 5:35 am
Forum: Device Tree
Topic: Possibility for multiple instances of LIRC?
Replies: 42
Views: 19295

Re: Possibility for multiple instances of LIRC?

Sorry was off for CNY gatherings, thanks for all the replies. Depending on what you exactly want to do you maybe can get away without using userspace lircd: The IR receiver drivers from the rc-core subsystem support in-kernel decoding of most of the popular protocols (like rc-5, rc-6 and NEC). You c...
by vicary
Thu Feb 15, 2018 1:00 pm
Forum: Device Tree
Topic: Possibility for multiple instances of LIRC?
Replies: 42
Views: 19295

Re: Possibility for multiple instances of LIRC?

I must say that I am quite new to kernel programming, to me everything looks fresh; Apologies for my curiosity. Do you mean starting from 4.15 lircd is going to handle two /dev/lirc* generated by gpio-ir and gpio-ir-tx; Or is there a way to “merge” them into one single I/O device with some dts synta...
by vicary
Thu Feb 15, 2018 8:12 am
Forum: Device Tree
Topic: Possibility for multiple instances of LIRC?
Replies: 42
Views: 19295

Re: Possibility for multiple instances of LIRC?

Thanks for the quick reply.

I followed your dts and it created 8 devices, AFAIK lirc-rpi was able to handle a pair of TX/RX in one process.

Shall I split up those TX/RX pairs and run lircd 8 times?
by vicary
Wed Feb 14, 2018 9:08 am
Forum: Device Tree
Topic: Possibility for multiple instances of LIRC?
Replies: 42
Views: 19295

Possibility for multiple instances of LIRC?

I am looking into the possibilities for a Raspberry Pi to do IR communications in 4 different directions, both transmitting and receiving for each direction. These are what I've found so far and stuck at the last one, bengtmartensson/lirc_rpi supports multiple transmitters, but not multiple receiver...
by vicary
Wed Mar 20, 2013 1:41 am
Forum: Other
Topic: Raspberry Pi using Chromium OS?
Replies: 14
Views: 31153

Re: Raspberry Pi using Chromium OS?

I hope Raspberry Pi will prove the market potential for either encourage the development of a new SoC that the Pi can easily make use of, or shows the chip is already good enough right here and the value of porting.
by vicary
Tue Oct 09, 2012 7:50 am
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: Support for GPIO-driven interrupts
Replies: 47
Views: 90836

Re: Support for GPIO-driven interrupts

Hello, does anybody have experiences regarding the maximum frequency of interrupts a Raspberry can handle via the virtual filesystem polling? "Frequency" means an amount of interrupts per second, for example. Thx Stefan +1 Working on benchmarks under node.js modules, would also like to know pure C ...
by vicary
Tue Oct 09, 2012 6:53 am
Forum: Camera board
Topic: buy CSI camera module
Replies: 59
Views: 34356

Re: buy CSI camera module

Oh dear, the 'next few days' turns me on. :twisted:
by vicary
Sat Sep 15, 2012 8:25 pm
Forum: Raspberry Pi OS
Topic: Removing xorg from raspbian
Replies: 23
Views: 33192

Re: Removing xorg from raspbian

By using ncdu to check in directory basis, it ends up a few locations was eating up my free spaces. 1. Unused locales I guess I have wrongly chosen both GB and UK english and I even checked the zh_TW for some reason.. did a localepurge and 200mb is gone. 2. Sample build codes in /opt That H.624 movi...
by vicary
Tue Sep 11, 2012 6:20 am
Forum: For sale
Topic: BRAMBLES - finger jointed wooden case
Replies: 26
Views: 15595

Re: BRAMBLES - finger jointed wooden case

Bought one and love it so much!
by vicary
Tue Sep 11, 2012 5:53 am
Forum: Raspberry Pi OS
Topic: Removing xorg from raspbian
Replies: 23
Views: 33192

Re: Removing xorg from raspbian

Further squeezing, is it a good decision by replacing all essential binaries with BusyBox?
by vicary
Thu Sep 06, 2012 5:24 am
Forum: Camera board
Topic: Thermal imaging possible?
Replies: 13
Views: 15999

Re: Thermal imaging possible?

... If you think that's expensive, compare that to a "traditional" thermal imager, like the FLIR line ranging from FLIR i7 at $2000 through FLIR T640 at $26000, to SC8000 at (? probably > $100k) ... Extracted from http://www.flir.com/thermography/americas/us/view/?id=51657 ... With this overstock p...
by vicary
Sun Sep 02, 2012 10:04 am
Forum: Camera board
Topic: Thermal imaging possible?
Replies: 13
Views: 15999

Re: Thermal imaging possible?

Sometimes it's hard to know what to read when a hobbyist seeks whether his idea is possible, thanks for pointing out the wavelength thing. :)
by vicary
Fri Aug 31, 2012 5:31 am
Forum: Troubleshooting
Topic: Possible to detect analog audio jack insertion?
Replies: 6
Views: 3472

Re: Possible to detect analog audio jack insertion?

So to do this successfully, D12 & D13 would have to be removed, and be replaced with, say 1k resistors. Pin 3 or 4 (not both) is then wired to a GPIO, with a 10k pull-up. There would have to be a low-pass filter to remove the audio, and a diode pair to protect the GPIO. So far this can be done with...
by vicary
Thu Aug 23, 2012 6:10 pm
Forum: Camera board
Topic: Thermal imaging possible?
Replies: 13
Views: 15999

Thermal imaging possible?

I have tried removing the infrared filter from some old webcams, I am thinking of doing thermal imaging with a thermometer module attached as a control to room temperature.

My question is how the current camera module designed? Can I remove the IR filter as easy as normal webcams?
by vicary
Sat Aug 18, 2012 1:07 pm
Forum: Raspberry Pi OS
Topic: Removing xorg from raspbian
Replies: 23
Views: 33192

Re: Removing xorg from raspbian

This is more or less the point I've got to, but actually could go a bit further if you don't need the raspi-* tools come with Raspbian.

My image lies slightly over 1GB as I'd keep nodejs and some GPIO, SPI and I2C things inside.

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