/media/sandbox/xtools/avr-dev/build/avr/bin/avr-gcc -g -Wall -O2 -mmcu=avr4 -c -o main.o main.c In file included from main.c:21: /media/sandbox/xtools/avr-dev/build/avr/lib/gcc/avr/3.4.4/../../../../avr/include/avr/io.h:306:6: warning: #warning "device type not defined" main.c: In function `ioinit': main.c:109: error: `UBRRL' undeclared (first use in this function) main.c:109: error: (Each undeclared identifier is reported only once main.c:109: error: for each function it appears in.) main.c:111: error: `UCR' undeclared (first use in this function) main.c:111: error: `TXEN' undeclared (first use in this function) main.c:122: error: `TWBR' undeclared (first use in this function) main.c: In function `uart_putchar': main.c:137: error: `USR' undeclared (first use in this function) main.c:137: error: `UDRE' undeclared (first use in this function) main.c:138: error: `UDR' undeclared (first use in this function) main.c: In function `ee24xx_read_bytes': main.c:177: error: `TWCR' undeclared (first use in this function) main.c:177: error: `TWINT' undeclared (first use in this function) main.c:177: error: `TWSTA' undeclared (first use in this function) main.c:177: error: `TWEN' undeclared (first use in this function) main.c:179: error: `TWSR' undeclared (first use in this function) main.c:179: error: `TWS7' undeclared (first use in this function) main.c:179: error: `TWS6' undeclared (first use in this function) main.c:179: error: `TWS5' undeclared (first use in this function) main.c:179: error: `TWS4' undeclared (first use in this function) main.c:179: error: `TWS3' undeclared (first use in this function) main.c:195: error: `TWDR' undeclared (first use in this function) main.c:270: error: `TWEA' undeclared (first use in this function) main.c:294: error: `TWSTO' undeclared (first use in this function) main.c: In function `ee24xx_write_page': main.c:344: error: `TWCR' undeclared (first use in this function) main.c:344: error: `TWINT' undeclared (first use in this function) main.c:344: error: `TWSTA' undeclared (first use in this function) main.c:344: error: `TWEN' undeclared (first use in this function) main.c:346: error: `TWSR' undeclared (first use in this function) main.c:346: error: `TWS7' undeclared (first use in this function) main.c:346: error: `TWS6' undeclared (first use in this function) main.c:346: error: `TWS5' undeclared (first use in this function) main.c:346: error: `TWS4' undeclared (first use in this function) main.c:346: error: `TWS3' undeclared (first use in this function) main.c:361: error: `TWDR' undeclared (first use in this function) main.c:416: error: `TWSTO' undeclared (first use in this function) main.c: At top level: main.c:468: warning: return type of 'main' is not `int' main.c: In function `main': main.c:476: warning: passing arg 1 of `fdevopen' from incompatible pointer type main.c:476: error: too many arguments to function `fdevopen' make: *** [main.o] Error 1