Comtrol eCos - Manual (Page 382)

Chapter 17. How to Write a Driver
Arguments
l
The "C" label for this structure.
funs
The set of interface functions (see below).
dev_priv
A placeholder for any device specific data for this channel.
baud
The initial baud rate value (cyg_serial_baud_t).
stop
The initial stop bits value (cyg_serial_stop_bits_t).
parity
The initial parity mode value (cyg_serial_parity_t).
word_length
The initial word length value (cyg_serial_word_length_t).
flags
The initial driver flags value.
out_buf
Pointer to the output buffer. NULL if none required.
out_buflen
The length of the output buffer.
in_buf
pointer to the input buffer. NULL if none required.
in_buflen
The length of the input buffer.
If either buffer length is zero, no buffering will take place in that direction and only polled mode functions will be
used.
The interface from the hardware independent driver into the hardware interface module is contained in the funs
table. This is defined by the macro:
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