How can one control the GPIO outputs on a Raspberry Pi2 without
needing the program to run as root? I am using Raspbian Wheezy and I
need to add two relays controls to my program.
The pages I have found with google are for the original Pi so the
connector referenced is the wrong size and it is
>How can one control the GPIO outputs on a Raspberry Pi2 without needing the
program to run as root?
sudo chown root
sudo chmod 4755
The 4 is setuid bit, which will allow normal users to run the program but
the program itself has root privilege.
--
View this message in context:
On 07/10/15 08:02, Bo Berglund wrote:
> How can one control the GPIO outputs on a Raspberry Pi2 without
> needing the program to run as root? I am using Raspbian Wheezy and I
> need to add two relays controls to my program.
> The pages I have found with google are for the original Pi so the
>
Bo Berglund wrote on Wed, 07 Oct 2015:
How can one control the GPIO outputs on a Raspberry Pi2 without
needing the program to run as root? I am using Raspbian Wheezy and I
need to add two relays controls to my program.
This really has nothing to do with either FPC or Pascal programming in
Mark Morgan Lloyd wrote:
Michael Van Canneyt wrote:
On Mon, 28 Sep 2015, Mark Morgan Lloyd wrote:
PostgreSQL has a useful feature where application programs can send
notifications to each other, this tends to be much "cheaper" than
periodically polling a table for changes.
I've had this
On Wed, 7 Oct 2015, Mark Morgan Lloyd wrote:
Jonas Maebe wrote:
Bo Berglund wrote on Wed, 07 Oct 2015:
I think that it really does because there must be some interface
between the FPC system and the underlying operating system managing
the hardware.
On Linux/Unix, every interface to
Jonas Maebe wrote:
Bo Berglund wrote on Wed, 07 Oct 2015:
I think that it really does because there must be some interface
between the FPC system and the underlying operating system managing
the hardware.
On Linux/Unix, every interface to hardware gets exposed as a file
(generally under
Hi,
I need to compress a file the same way as PHP's gzcompress() function:
http://php.net/manual/en/function.gzcompress.php
>From that URL it uses ZLIB, and that is apparently different to GZIP and
DEFLATE, because PHP also has a gzencode() and gzdeflate() functions
respectively.
It seems
On 2015-10-07 16:51, Dmitry Boyarintsev wrote:
> The difference is mentioned in deflateInit2() functions, where a user can
> specify windowBits. If the value is negative, to Gzip header would be
> generated.
>
> I presume the gzcompress is passing negative value to the function, while
> gzencode
On Wed, Oct 7, 2015 at 12:26 PM, Graeme Geldenhuys <
mailingli...@geldenhuys.co.uk> wrote:
> Hi,
>
> I need to compress a file the same way as PHP's gzcompress() function:
>
>http://php.net/manual/en/function.gzcompress.php-pascal
>
On 2015-10-07 16:56, Graeme Geldenhuys wrote:
> constructor has an option ASkipHeaders which defaults to False. I'm now
> setting that parameter to True and will soon see if that works for my
> code or not.
That didn't work for my experiment. :-/
Regards,
- Graeme -
--
fpGUI Toolkit - a
Not sure about, if there's an equivalent function, but the difference with
Gzip and Deflate is the following.
Gzip contains an information about the original file + deflate (compressed)
stream of data.
Default is just stream of data.
For example ZIP files are using Deflate, but not using Gzip
On 2015-10-07 17:22, Graeme Geldenhuys wrote:
>> > constructor has an option ASkipHeaders which defaults to False. I'm now
>> > setting that parameter to True and will soon see if that works for my
>> > code or not.
> That didn't work for my experiment. :-/
Correction, I made a silly mistake in
On Wed, Oct 7, 2015 at 1:42 PM, Graeme Geldenhuys <
mailingli...@geldenhuys.co.uk> wrote:
[...]
> Correction, I made a silly mistake in my code. I've managed to get it to
> work with TCompressionStream and with ASkipHeaders = False (the default).
The link that I sent has a nice explanation (and
14 matches
Mail list logo
