'Serial' was not declared in this scope

hello, i'm getting following error .cpp file i'm including library i'm writing:

'serial' not declared in scope

i'm using arduino environment compile, library shows in import library menu , includes fine. file called servertaskkernel.cpp , structured follows:

code: [select]


#include "servertaskkernel.h"

. . .

void servertaskkernel::loop_() {
. . .
     int command = serial.read();
}


and sketch includes header file is:

code: [select]



#include <task.h>
#include <servertaskkernel.h>

#define serial_speed  9600

const task* tasks[] {
};

servertaskkernel g_kernel(0, tasks);

void setup() {
 serial.begin(serial_speed);
}

void loop() {
 g_kernel.loop_();
}


is there include file serial? i'm experienced programmer, new arduino. somehow arduino environment doesn't seem setting dependencies right? appreciated.

[glow]edit:[/glow] tried removing includes , pasting of library code sketch 1 file, , didn't error. has being in library, i.e., in external .h , .cpp files...

i found need include serial , other arduino features:

#include "wprogram.h"

once placed in servertaskkernel, didn't complain serial anymore. if had referenced serial in header file, have had include wprogram.h there, referenced in implementation file.

i guess should have read library creation tutorial earlier   http://www.arduino.cc/en/hacking/librarytutorial

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