Commit e189da53 authored by Tomasz Wlostowski's avatar Tomasz Wlostowski Committed by Grzegorz Daniluk

dev/uart.c: now uart_read_byte() checks if there is data to be received

parent 5c4e478d
......@@ -38,5 +38,8 @@ int uart_poll()
int uart_read_byte()
return uart ->RDR & 0xff;
return -1;
return uart->RDR & 0xff;
\ No newline at end of file
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