#define EOS_OK                      0
#define EOS_ERR                     -1
#define EOS_ERR_TIMEOUT             -2

#define EOS_ERR_FULL                -10
#define EOS_ERR_EMPTY               -11
#define EOS_ERR_NOTFOUND            -12
#define EOS_ERR_BUSY                -13

#define EOS_TASK_PRIORITY_UART      1
#define EOS_TASK_PRIORITY_UART_RI   1
#define EOS_TASK_PRIORITY_I2S       1
#define EOS_TASK_PRIORITY_NET_XCHG  1
#define EOS_TASK_PRIORITY_UDP_RCVR  1

#define EOS_TASK_SSIZE_UART         4096
#define EOS_TASK_SSIZE_UART_RI      4096
#define EOS_TASK_SSIZE_I2S          4096
#define EOS_TASK_SSIZE_NET_XCHG     8192
#define EOS_TASK_SSIZE_UDP_RCVR     4096