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Full Discussion: undefined reference help
Homework and Emergencies Homework & Coursework Questions undefined reference help Post 302510432 by Chubler_XL on Monday 4th of April 2011 12:24:27 AM
Old 04-04-2011
Couple of issues with your makefile:

Code:
mygrader: driver.o mygrader.o
        cc driver.o mygrader.o -o mygrader
 
driver.0: mygrader.h
 
mygrader.o: mygrader.h

1. Insure all lines that are indented use tab character not spaces
2. driver.o and mygrader.o need to start in column 1 and need space after :
3. remove full stop after -o mygrader on cc line

The make rule for mygrader2 is missing any programs to compile (probably should be removed from makefile, both on the all line and commented as shown below):
Code:
#
# Not used - will not compile without .c or .o files on the cc line
# mygrader2:
#        cc  -o mygrader

 

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LEARN ABOUT MOJAVE

uchcom

UCHCOM(4)						   BSD Kernel Interfaces Manual 						 UCHCOM(4)

NAME

     uchcom -- WinChipHead CH341/CH340 serial adapter driver

SYNOPSIS

     To compile this driver into the kernel, place the following lines in your kernel configuration file:

	   device uchcom
	   device ucom

     Alternatively, to load the driver as a module at boot time, place the following line in loader.conf(5):

	   uchcom_load="YES"

DESCRIPTION

     The uchcom driver provides support for the WinChipHead CH341/CH340 USB-to-RS-232 Bridge chip.

     The device is accessed through the ucom(4) driver which makes it behave like a tty(4).

HARDWARE

     The uchcom driver supports the following adapters:

     o	 HL USB-RS232

SEE ALSO

     tty(4), ucom(4), usb(4)

HISTORY

     The uchcom driver first appeared in NetBSD.  The first FreeBSD release to include it was FreeBSD 8.0.

BUGS

     Actually, this chip seems unable to drive other than 8 data bits and 1 stop bit line.

BSD
								   May 18, 2009 							       BSD
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