Anyone using php_serial.class.php with USB serial port?

[Lennart Sorensen]

On Thu, Apr 03, 2008 at 11:19:38PM -0400, jim wrote:
> Strange I discovered that if I run this from the command line as root it
> works. If I start Firefox even as root and run the program from the
> browser I get the error ..
> 
> Warning: Specified serial port is not valid
> in /usr/share/php/php_serial.class.php on line 111
> 
> I tried changing permissions on the file to give permissions to anyone
> to execute and you still have to be root in the command line to make it
> run properly and it still won't run via the browser. Any idea whats
> going on here?

What user does your web server run as?  Is that user/group a member of
whichever group has access to the serial ports?

On Debian you would add the www-data user to the group 'dialout' by
doing:
adduser www-data dialout

It is probably a permission issue and nothing else.

-- 
Len Sorensen
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