I have a brand new install of raspian, fresh install of apache2 + php
+rrdools But the php script that ran well on a old version of rapian ( I had compiled both apache and php at that time) faile with '-- undefined function dio_open() ' So probably php is not compiled with dio! Is there a way to add these functionality to php without recompile? Many tanks to all
to give some precision, dio allow direct access to tty, .. exmple: $DEVICE="/dev/ttyS1"; $LOCK="/var/lock/lockdev/LCK..ttyS1";
----- $fd = dio_open($DEVICE, O_RDWR |O_NOCTTY | O_NONBLOCK ); if (! $fd ) { LogErrors($myErrors,"Error opening $DEVICE");ABORT("error opening $DEVICE ");}
$param = array( 'baud' => 9600, 'bits' => 8, 'stop' =>1, 'parity' => 0); if ( ! dio_tcsetattr($fd, $param) ) { dio_close($fd); ABORT("Error while dio_tcsetattr \n"); }
$rc = dio_write($fd, "\r"); sleep(1); while ($rs != ":" ) { $rs = dio_read($fd, 1); }
$rc = dio_write($fd, "E0\r");
$rs = ""; $x =0; while ($rs != ":" ) { $rs = dio_read($fd, 1); $x++; if ( $x > 10000 ) { LogErrors($myErrors,"Timeout waiting prompt");ABORT("Timeout waiting prompt\n"); } }
$rc = dio_write($fd, "SH\r");
Unless you find php7 dio package in the repository or in a ppa, you will need to compile your own php with dio support.
-- //Aho
-- ?The ultimate result of shielding men from the effects of folly is to fill the world with fools.?
better, start at the beginning
I dont see that adds anything and it is less informative
-- It?s easier to fool people than to convince them that they have been fooled. Mark Twain
Well the intro does say
Note:
longer bundled with PHP as of PHP 5.1.0.
That might be helpful to know...
-- Ben.
Tht info was in the link I posted first as well.
-- ?It is hard to imagine a more stupid decision or more dangerous way of making decisions than by putting those decisions in the hands of people
As was the more imnporatnt note:
"It is not bundled anymore. See
-- ?it should be clear by now to everyone that activist environmentalism (or environmental activism) is becoming a general ideology about humans,
Op 01-09-19 om 15:23 schreef ZOT:
Alternatively, just use fopen(), fclose(), fread(), fwrite(). Set port parameters with exec("stty -F [device] [parameters]"), see: man stty. Flushing the buffers at the right moment might be tricky, or it might work well automatically; I don't know.
Look at this old thing for inspiration:
I could not find it. Maybe we are seeing different text?
Yes, that's useful, but it's in a user note. This one is probably reliable though.
-- Ben.
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