mirror of
git://sigrok.org/libserialport
synced 2023-08-10 21:13:24 +03:00
Doxygen cosmetics.
This commit is contained in:
parent
626d280fd3
commit
cf9d365ce0
@ -18,52 +18,51 @@
|
||||
*/
|
||||
|
||||
/**
|
||||
|
||||
@mainpage libserialport API
|
||||
|
||||
Introduction
|
||||
============
|
||||
|
||||
libserialport is a minimal library written in C that is intended to take care
|
||||
of the OS-specific details when writing software that uses serial ports.
|
||||
|
||||
By writing your serial code to use libserialport, you enable it to work
|
||||
transparently on any platform supported by the library.
|
||||
|
||||
The operations that are supported are:
|
||||
|
||||
- @ref Enumeration (obtaining a list of serial ports on the system).
|
||||
- @ref Ports
|
||||
- @ref Configuration (baud rate, parity, etc)
|
||||
- @ref Data
|
||||
- @ref Errors
|
||||
|
||||
libserialport is an open source project released under the LGPL3+ license.
|
||||
|
||||
API principles
|
||||
==============
|
||||
|
||||
The API is simple, and designed to be a minimal wrapper around the serial port
|
||||
support in each OS.
|
||||
|
||||
Most functions take a pointer to a struct sp_port, which represents a serial
|
||||
port. These structures are always allocated and freed by the library, using
|
||||
the functions in the @ref Enumeration "Enumeration" section.
|
||||
|
||||
All functions can return only three possible error values. SP_ERR_ARG indicates
|
||||
the function was called with invalid arguments. SP_ERR_FAIL indicates that the
|
||||
OS reported a failure. SP_ERR_MEM indicates that a memory allocation failed.
|
||||
All of these error values are negative.
|
||||
|
||||
When SP_ERR_FAIL is returned, an error code or string description of the error
|
||||
can be obtained by calling sp_last_error_code() or sp_last_error_message(). The
|
||||
error code or message is that provided by the OS; libserialport does not define
|
||||
any error codes or messages of its own.
|
||||
|
||||
Function calls that succeed return SP_OK, which is equal to zero, or where
|
||||
otherwise documented a positive value.
|
||||
|
||||
*/
|
||||
*
|
||||
* @mainpage libserialport API
|
||||
*
|
||||
* Introduction
|
||||
* ============
|
||||
*
|
||||
* libserialport is a minimal library written in C that is intended to take
|
||||
* care of the OS-specific details when writing software that uses serial ports.
|
||||
*
|
||||
* By writing your serial code to use libserialport, you enable it to work
|
||||
* transparently on any platform supported by the library.
|
||||
*
|
||||
* The operations that are supported are:
|
||||
*
|
||||
* - @ref Enumeration (obtaining a list of serial ports on the system)
|
||||
* - @ref Ports
|
||||
* - @ref Configuration (baud rate, parity, etc.)
|
||||
* - @ref Data
|
||||
* - @ref Errors
|
||||
*
|
||||
* libserialport is an open source project released under the LGPL3+ license.
|
||||
*
|
||||
* API principles
|
||||
* ==============
|
||||
*
|
||||
* The API is simple, and designed to be a minimal wrapper around the serial
|
||||
* port support in each OS.
|
||||
*
|
||||
* Most functions take a pointer to a struct sp_port, which represents a serial
|
||||
* port. These structures are always allocated and freed by the library, using
|
||||
* the functions in the @ref Enumeration "Enumeration" section.
|
||||
*
|
||||
* All functions can return only three possible error values. @ref SP_ERR_ARG
|
||||
* indicates the function was called with invalid arguments. @ref SP_ERR_FAIL
|
||||
* indicates that the OS reported a failure. @ref SP_ERR_MEM indicates that a
|
||||
* memory allocation failed. All of these error values are negative.
|
||||
*
|
||||
* When @ref SP_ERR_FAIL is returned, an error code or string description of
|
||||
* the error can be obtained by calling sp_last_error_code() or
|
||||
* sp_last_error_message(). The error code or message is that provided by the
|
||||
* OS; libserialport does not define any error codes or messages of its own.
|
||||
*
|
||||
* Function calls that succeed return @ref SP_OK, which is equal to zero,
|
||||
* or where otherwise documented a positive value.
|
||||
*/
|
||||
|
||||
#ifndef LIBSERIALPORT_H
|
||||
#define LIBSERIALPORT_H
|
||||
@ -131,7 +130,7 @@ enum sp_rts {
|
||||
/** RTS on. */
|
||||
SP_RTS_ON = 1,
|
||||
/** RTS used for flow control. */
|
||||
SP_RTS_FLOW_CONTROL = 2
|
||||
SP_RTS_FLOW_CONTROL = 2,
|
||||
};
|
||||
|
||||
/** CTS pin behaviour. */
|
||||
@ -141,7 +140,7 @@ enum sp_cts {
|
||||
/** CTS ignored. */
|
||||
SP_CTS_IGNORE = 0,
|
||||
/** CTS used for flow control. */
|
||||
SP_CTS_FLOW_CONTROL = 1
|
||||
SP_CTS_FLOW_CONTROL = 1,
|
||||
};
|
||||
|
||||
/** DTR pin behaviour. */
|
||||
@ -153,7 +152,7 @@ enum sp_dtr {
|
||||
/** DTR on. */
|
||||
SP_DTR_ON = 1,
|
||||
/** DTR used for flow control. */
|
||||
SP_DTR_FLOW_CONTROL = 2
|
||||
SP_DTR_FLOW_CONTROL = 2,
|
||||
};
|
||||
|
||||
/** DSR pin behaviour. */
|
||||
@ -163,7 +162,7 @@ enum sp_dsr {
|
||||
/** DSR ignored. */
|
||||
SP_DSR_IGNORE = 0,
|
||||
/** DSR used for flow control. */
|
||||
SP_DSR_FLOW_CONTROL = 1
|
||||
SP_DSR_FLOW_CONTROL = 1,
|
||||
};
|
||||
|
||||
/** XON/XOFF flow control behaviour. */
|
||||
@ -177,7 +176,7 @@ enum sp_xonxoff {
|
||||
/** XON/XOFF enabled for output only. */
|
||||
SP_XONXOFF_OUT = 2,
|
||||
/** XON/XOFF enabled for input and output. */
|
||||
SP_XONXOFF_INOUT = 3
|
||||
SP_XONXOFF_INOUT = 3,
|
||||
};
|
||||
|
||||
/** Standard flow control combinations. */
|
||||
@ -189,15 +188,15 @@ enum sp_flowcontrol {
|
||||
/** Hardware flow control using RTS/CTS signals. */
|
||||
SP_FLOWCONTROL_RTSCTS = 2,
|
||||
/** Hardware flow control using DTR/DSR signals. */
|
||||
SP_FLOWCONTROL_DTRDSR = 3
|
||||
SP_FLOWCONTROL_DTRDSR = 3,
|
||||
};
|
||||
|
||||
/** A serial port. */
|
||||
struct sp_port {
|
||||
/** Name used to open the port */
|
||||
/** Name used to open the port. */
|
||||
char *name;
|
||||
/** @cond 0 */
|
||||
/* OS-specific port handle */
|
||||
/** OS-specific port handle. */
|
||||
#ifdef _WIN32
|
||||
HANDLE hdl;
|
||||
#else
|
||||
@ -234,318 +233,324 @@ struct sp_port_config {
|
||||
*/
|
||||
|
||||
/**
|
||||
Obtains a pointer to a new sp_port structure representing the named port. The
|
||||
user should allocate a variable of type "struct sp_port *" and pass a pointer
|
||||
to this to receive the result.
|
||||
|
||||
The result should be freed after use by calling sp_free_port().
|
||||
|
||||
@return SP_OK on success, SP_ERR_FAIL on failure, SP_ERR_MEM on allocation
|
||||
failure, or SP_ERR_ARG if an invalid pointer is passed. If any error
|
||||
is returned, the variable pointed to by port_ptr will be set to NULL.
|
||||
Otherwise, it will be set to point to the newly allocated port.
|
||||
*/
|
||||
* Obtain a pointer to a new sp_port structure representing the named port.
|
||||
*
|
||||
* The user should allocate a variable of type "struct sp_port *" and pass a
|
||||
* pointer to this to receive the result.
|
||||
*
|
||||
* The result should be freed after use by calling sp_free_port().
|
||||
*
|
||||
* @return SP_OK on success, SP_ERR_FAIL on failure, SP_ERR_MEM on allocation
|
||||
* failure, or SP_ERR_ARG if an invalid pointer is passed. If any error
|
||||
* is returned, the variable pointed to by port_ptr will be set to NULL.
|
||||
* Otherwise, it will be set to point to the newly allocated port.
|
||||
*/
|
||||
enum sp_return sp_get_port_by_name(const char *portname, struct sp_port **port_ptr);
|
||||
|
||||
/**
|
||||
Frees a port structure obtained from sp_get_port_by_name() or sp_copy_port().
|
||||
*/
|
||||
* Free a port structure obtained from sp_get_port_by_name() or sp_copy_port().
|
||||
*/
|
||||
void sp_free_port(struct sp_port *port);
|
||||
|
||||
/**
|
||||
Lists the serial ports available on the system. The result obtained is an
|
||||
array of pointers to sp_port structures, terminated by a NULL. The user should
|
||||
allocate a variable of type "struct sp_port **" and pass a pointer to this to
|
||||
receive the result.
|
||||
|
||||
The result should be freed after use by calling sp_free_port_list(). If a port
|
||||
from the list is to be used after freeing the list, it must be copied first
|
||||
using sp_copy_port().
|
||||
|
||||
@return SP_OK on success, SP_ERR_FAIL on failure, SP_ERR_MEM on allocation
|
||||
failure, or SP_ERR_ARG if an invalid pointer is passed. If any error
|
||||
is returned, the variable pointed to by list_ptr will be set to NULL.
|
||||
Otherwise, it will be set to point to the newly allocated array.
|
||||
*/
|
||||
* List the serial ports available on the system.
|
||||
*
|
||||
* The result obtained is an array of pointers to sp_port structures,
|
||||
* terminated by a NULL. The user should allocate a variable of type
|
||||
* "struct sp_port **" and pass a pointer to this to receive the result.
|
||||
*
|
||||
* The result should be freed after use by calling sp_free_port_list().
|
||||
* If a port from the list is to be used after freeing the list, it must be
|
||||
* copied first using sp_copy_port().
|
||||
*
|
||||
* @return SP_OK on success, SP_ERR_FAIL on failure, SP_ERR_MEM on allocation
|
||||
* failure, or SP_ERR_ARG if an invalid pointer is passed. If any error
|
||||
* is returned, the variable pointed to by list_ptr will be set to NULL.
|
||||
* Otherwise, it will be set to point to the newly allocated array.
|
||||
*/
|
||||
enum sp_return sp_list_ports(struct sp_port ***list_ptr);
|
||||
|
||||
/**
|
||||
Makes a new copy of a sp_port structure. The user should allocate a variable
|
||||
of type "struct sp_port *" and pass a pointer to this to receive the result.
|
||||
|
||||
The copy should be freed after use by calling sp_free_port().
|
||||
|
||||
@return SP_OK on success, SP_ERR_MEM on allocation failure, or SP_ERR_ARG
|
||||
if an invalid port or pointer is passed. If any error is returned,
|
||||
the variable pointed to by copy_ptr will be set to NULL. Otherwise,
|
||||
it will be set to point to the newly allocated copy.
|
||||
*/
|
||||
* Make a new copy of a sp_port structure.
|
||||
*
|
||||
* The user should allocate a variable of type "struct sp_port *" and pass a
|
||||
* pointer to this to receive the result.
|
||||
*
|
||||
* The copy should be freed after use by calling sp_free_port().
|
||||
*
|
||||
* @return SP_OK on success, SP_ERR_MEM on allocation failure, or SP_ERR_ARG
|
||||
* if an invalid port or pointer is passed. If any error is returned,
|
||||
* the variable pointed to by copy_ptr will be set to NULL. Otherwise,
|
||||
* it will be set to point to the newly allocated copy.
|
||||
*/
|
||||
enum sp_return sp_copy_port(const struct sp_port *port, struct sp_port **copy_ptr);
|
||||
|
||||
/**
|
||||
Frees a port list obtained from sp_list_ports(). This will also free all
|
||||
the sp_port structures referred to from the list; any that are to be retained
|
||||
must be copied first using sp_copy_port().
|
||||
*/
|
||||
* Free a port list obtained from sp_list_ports().
|
||||
*
|
||||
* This will also free all the sp_port structures referred to from the list;
|
||||
* any that are to be retained must be copied first using sp_copy_port().
|
||||
*/
|
||||
void sp_free_port_list(struct sp_port **ports);
|
||||
|
||||
/**
|
||||
@}
|
||||
@defgroup Ports Opening & closing ports
|
||||
@{
|
||||
*/
|
||||
* @}
|
||||
* @defgroup Ports Opening and closing ports
|
||||
* @{
|
||||
*/
|
||||
|
||||
/**
|
||||
Opens the specified serial port.
|
||||
|
||||
@param port Pointer to port structure.
|
||||
@param flags Flags to use when opening the serial port.
|
||||
|
||||
@return SP_OK on success, SP_ERR_FAIL on failure, SP_ERR_MEM on allocation
|
||||
failure, or SP_ERR_ARG if an invalid port is passed.
|
||||
*/
|
||||
* Open the specified serial port.
|
||||
*
|
||||
* @param port Pointer to port structure.
|
||||
* @param flags Flags to use when opening the serial port.
|
||||
*
|
||||
* @return SP_OK on success, SP_ERR_FAIL on failure, SP_ERR_MEM on allocation
|
||||
* failure, or SP_ERR_ARG if an invalid port is passed.
|
||||
*/
|
||||
enum sp_return sp_open(struct sp_port *port, enum sp_mode flags);
|
||||
|
||||
/**
|
||||
Closes the specified serial port.
|
||||
|
||||
@return SP_OK on success, SP_ERR_FAIL on failure, or SP_ERR_ARG
|
||||
if an invalid port is passed.
|
||||
*/
|
||||
* Close the specified serial port.
|
||||
*
|
||||
* @return SP_OK on success, SP_ERR_FAIL on failure, or SP_ERR_ARG
|
||||
* if an invalid port is passed.
|
||||
*/
|
||||
enum sp_return sp_close(struct sp_port *port);
|
||||
|
||||
/**
|
||||
@}
|
||||
@defgroup Configuration Setting port parameters
|
||||
@{
|
||||
*/
|
||||
* @}
|
||||
* @defgroup Configuration Setting port parameters
|
||||
* @{
|
||||
*/
|
||||
|
||||
/**
|
||||
Gets current configuration of the specified serial port.
|
||||
|
||||
The user should allocate a struct sp_port_config, then pass a pointer to it
|
||||
as the config parameter. The struct will be populated with the port
|
||||
configuration.
|
||||
|
||||
Any setting that is in a state not recognised or supported by
|
||||
libserialport will have its value set to -1 in the struct.
|
||||
|
||||
@return SP_OK on success, SP_ERR_FAIL on failure, or SP_ERR_ARG
|
||||
for invalid arguments.
|
||||
*/
|
||||
* Get the current configuration of the specified serial port.
|
||||
*
|
||||
* The user should allocate a struct sp_port_config, then pass a pointer to it
|
||||
* as the config parameter. The struct will be populated with the port
|
||||
* configuration.
|
||||
*
|
||||
* Any setting that is in a state not recognised or supported by
|
||||
* libserialport will have its value set to -1 in the struct.
|
||||
*
|
||||
* @return SP_OK on success, SP_ERR_FAIL on failure, or SP_ERR_ARG
|
||||
* for invalid arguments.
|
||||
*/
|
||||
enum sp_return sp_get_config(struct sp_port *port, struct sp_port_config *config);
|
||||
|
||||
/**
|
||||
Sets configuration for the specified serial port.
|
||||
|
||||
The user should populate a struct sp_port_config, then pass a pointer to it
|
||||
as the config parameter.
|
||||
|
||||
To retain the current value of any setting, set that field to -1.
|
||||
|
||||
@return SP_OK on success, SP_ERR_FAIL on failure, or SP_ERR_ARG
|
||||
for invalid arguments.
|
||||
*/
|
||||
* Set the configuration for the specified serial port.
|
||||
*
|
||||
* The user should populate a struct sp_port_config, then pass a pointer to it
|
||||
* as the config parameter.
|
||||
*
|
||||
* To retain the current value of any setting, set that field to -1.
|
||||
*
|
||||
* @return SP_OK on success, SP_ERR_FAIL on failure, or SP_ERR_ARG
|
||||
* for invalid arguments.
|
||||
*/
|
||||
enum sp_return sp_set_config(struct sp_port *port, const struct sp_port_config *config);
|
||||
|
||||
/**
|
||||
Sets the baud rate for the specified serial port.
|
||||
|
||||
@param port Pointer to port structure.
|
||||
@param baudrate Baud rate in bits per second.
|
||||
|
||||
@return SP_OK on success, SP_ERR_FAIL on failure, or SP_ERR_ARG
|
||||
for invalid arguments.
|
||||
*/
|
||||
* Set the baud rate for the specified serial port.
|
||||
*
|
||||
* @param port Pointer to port structure.
|
||||
* @param baudrate Baud rate in bits per second.
|
||||
*
|
||||
* @return SP_OK on success, SP_ERR_FAIL on failure, or SP_ERR_ARG
|
||||
* for invalid arguments.
|
||||
*/
|
||||
enum sp_return sp_set_baudrate(struct sp_port *port, int baudrate);
|
||||
|
||||
/**
|
||||
Sets the number of data bits for the specified serial port.
|
||||
|
||||
@param port Pointer to port structure.
|
||||
@param bits Number of data bits to use. Valid values are 5 to 8.
|
||||
|
||||
@return SP_OK on success, SP_ERR_FAIL on failure, or SP_ERR_ARG
|
||||
for invalid arguments.
|
||||
*/
|
||||
* Set the number of data bits for the specified serial port.
|
||||
*
|
||||
* @param port Pointer to port structure.
|
||||
* @param bits Number of data bits to use. Valid values are 5 to 8.
|
||||
*
|
||||
* @return SP_OK on success, SP_ERR_FAIL on failure, or SP_ERR_ARG
|
||||
* for invalid arguments.
|
||||
*/
|
||||
enum sp_return sp_set_bits(struct sp_port *port, int bits);
|
||||
|
||||
/**
|
||||
Sets the parity for the specified serial port.
|
||||
|
||||
@param port Pointer to port structure.
|
||||
@param parity Parity setting to use.
|
||||
|
||||
@return SP_OK on success, SP_ERR_FAIL on failure, or SP_ERR_ARG
|
||||
for invalid arguments.
|
||||
*/
|
||||
* Set the parity for the specified serial port.
|
||||
*
|
||||
* @param port Pointer to port structure.
|
||||
* @param parity Parity setting to use.
|
||||
*
|
||||
* @return SP_OK on success, SP_ERR_FAIL on failure, or SP_ERR_ARG
|
||||
* for invalid arguments.
|
||||
*/
|
||||
enum sp_return sp_set_parity(struct sp_port *port, enum sp_parity parity);
|
||||
|
||||
/**
|
||||
Sets the number of stop bits for the specified port.
|
||||
|
||||
@param port Pointer to port structure.
|
||||
@param stopbits Number of stop bits to use (1 or 2).
|
||||
|
||||
@return SP_OK on success, SP_ERR_FAIL on failure, or SP_ERR_ARG
|
||||
for invalid arguments.
|
||||
*/
|
||||
* Set the number of stop bits for the specified port.
|
||||
*
|
||||
* @param port Pointer to port structure.
|
||||
* @param stopbits Number of stop bits to use (1 or 2).
|
||||
*
|
||||
* @return SP_OK on success, SP_ERR_FAIL on failure, or SP_ERR_ARG
|
||||
* for invalid arguments.
|
||||
*/
|
||||
enum sp_return sp_set_stopbits(struct sp_port *port, int stopbits);
|
||||
|
||||
/**
|
||||
Sets the flow control type for the specified serial port.
|
||||
|
||||
This function is a wrapper that sets the RTS, CTS, DTR, DSR and
|
||||
XON/XOFF settings as necessary for the specified flow control
|
||||
type. For more fine-grained control of these settings, use their
|
||||
individual configuration functions or the sp_set_config() function.
|
||||
|
||||
@param port Pointer to port structure.
|
||||
@param flowcontrol Flow control setting to use.
|
||||
|
||||
@return SP_OK on success, SP_ERR_FAIL on failure, or SP_ERR_ARG
|
||||
for invalid arguments.
|
||||
*/
|
||||
* Set the flow control type for the specified serial port.
|
||||
*
|
||||
* This function is a wrapper that sets the RTS, CTS, DTR, DSR and
|
||||
* XON/XOFF settings as necessary for the specified flow control
|
||||
* type. For more fine-grained control of these settings, use their
|
||||
* individual configuration functions or the sp_set_config() function.
|
||||
*
|
||||
* @param port Pointer to port structure.
|
||||
* @param flowcontrol Flow control setting to use.
|
||||
*
|
||||
* @return SP_OK on success, SP_ERR_FAIL on failure, or SP_ERR_ARG
|
||||
* for invalid arguments.
|
||||
*/
|
||||
enum sp_return sp_set_flowcontrol(struct sp_port *port, enum sp_flowcontrol flowcontrol);
|
||||
|
||||
/**
|
||||
Sets the RTS pin behaviour for the specified port.
|
||||
|
||||
@param port Pointer to port structure.
|
||||
@param rts RTS pin mode.
|
||||
|
||||
@return SP_OK on success, SP_ERR_FAIL on failure, or SP_ERR_ARG
|
||||
for invalid arguments.
|
||||
*/
|
||||
* Set the RTS pin behaviour for the specified port.
|
||||
*
|
||||
* @param port Pointer to port structure.
|
||||
* @param rts RTS pin mode.
|
||||
*
|
||||
* @return SP_OK on success, SP_ERR_FAIL on failure, or SP_ERR_ARG
|
||||
* for invalid arguments.
|
||||
*/
|
||||
enum sp_return sp_set_rts(struct sp_port *port, enum sp_rts rts);
|
||||
|
||||
/**
|
||||
Sets the CTS pin behaviour for the specified port.
|
||||
|
||||
@param port Pointer to port structure.
|
||||
@param cts CTS pin mode.
|
||||
|
||||
@return SP_OK on success, SP_ERR_FAIL on failure, or SP_ERR_ARG
|
||||
for invalid arguments.
|
||||
*/
|
||||
* Set the CTS pin behaviour for the specified port.
|
||||
*
|
||||
* @param port Pointer to port structure.
|
||||
* @param cts CTS pin mode.
|
||||
*
|
||||
* @return SP_OK on success, SP_ERR_FAIL on failure, or SP_ERR_ARG
|
||||
* for invalid arguments.
|
||||
*/
|
||||
enum sp_return sp_set_cts(struct sp_port *port, enum sp_cts cts);
|
||||
|
||||
/**
|
||||
Sets the DTR pin behaviour for the specified port.
|
||||
|
||||
@param port Pointer to port structure.
|
||||
@param dtr DTR pin mode.
|
||||
|
||||
@return SP_OK on success, SP_ERR_FAIL on failure, or SP_ERR_ARG
|
||||
for invalid arguments.
|
||||
*/
|
||||
* Set the DTR pin behaviour for the specified port.
|
||||
*
|
||||
* @param port Pointer to port structure.
|
||||
* @param dtr DTR pin mode.
|
||||
*
|
||||
* @return SP_OK on success, SP_ERR_FAIL on failure, or SP_ERR_ARG
|
||||
* for invalid arguments.
|
||||
*/
|
||||
enum sp_return sp_set_dtr(struct sp_port *port, enum sp_dtr dtr);
|
||||
|
||||
/**
|
||||
Sets the RTS pin behaviour for the specified port.
|
||||
|
||||
@param port Pointer to port structure.
|
||||
@param dsr DSR pin mode.
|
||||
|
||||
@return SP_OK on success, SP_ERR_FAIL on failure, or SP_ERR_ARG
|
||||
for invalid arguments.
|
||||
*/
|
||||
* Set the RTS pin behaviour for the specified port.
|
||||
*
|
||||
* @param port Pointer to port structure.
|
||||
* @param dsr DSR pin mode.
|
||||
*
|
||||
* @return SP_OK on success, SP_ERR_FAIL on failure, or SP_ERR_ARG
|
||||
* for invalid arguments.
|
||||
*/
|
||||
enum sp_return sp_set_dsr(struct sp_port *port, enum sp_dsr dsr);
|
||||
|
||||
/**
|
||||
Configures XON/XOFF flow control for the specified port.
|
||||
|
||||
@param port Pointer to port structure.
|
||||
@param xon_xoff XON/XOFF flow control mode.
|
||||
|
||||
@return SP_OK on success, SP_ERR_FAIL on failure, or SP_ERR_ARG
|
||||
for invalid arguments.
|
||||
*/
|
||||
* Configure XON/XOFF flow control for the specified port.
|
||||
*
|
||||
* @param port Pointer to port structure.
|
||||
* @param xon_xoff XON/XOFF flow control mode.
|
||||
*
|
||||
* @return SP_OK on success, SP_ERR_FAIL on failure, or SP_ERR_ARG
|
||||
* for invalid arguments.
|
||||
*/
|
||||
enum sp_return sp_set_xon_xoff(struct sp_port *port, enum sp_xonxoff xon_xoff);
|
||||
|
||||
/**
|
||||
@}
|
||||
@defgroup Data Reading, writing & flushing data
|
||||
@{
|
||||
* @}
|
||||
* @defgroup Data Reading, writing, and flushing data
|
||||
* @{
|
||||
*/
|
||||
|
||||
/**
|
||||
Reads bytes from the specified serial port. Note that this function may
|
||||
return after reading less than the specified number of bytes; it is the
|
||||
user's responsibility to iterate as necessary in this case.
|
||||
|
||||
@param port Pointer to port structure.
|
||||
@param buf Buffer in which to store the bytes read.
|
||||
@param count Maximum number of bytes to read.
|
||||
|
||||
@return The number of bytes read, SP_ERR_FAIL on failure,
|
||||
or SP_ERR_ARG for invalid arguments.
|
||||
*/
|
||||
* Read bytes from the specified serial port.
|
||||
*
|
||||
* Note that this function may return after reading less than the specified
|
||||
* number of bytes; it is the user's responsibility to iterate as necessary
|
||||
* in this case.
|
||||
*
|
||||
* @param port Pointer to port structure.
|
||||
* @param buf Buffer in which to store the bytes read.
|
||||
* @param count Maximum number of bytes to read.
|
||||
*
|
||||
* @return The number of bytes read, SP_ERR_FAIL on failure,
|
||||
* or SP_ERR_ARG for invalid arguments.
|
||||
*/
|
||||
enum sp_return sp_read(struct sp_port *port, void *buf, size_t count);
|
||||
|
||||
/**
|
||||
Write bytes to the specified serial port. Note that this function may
|
||||
return after writing less than the specified number of bytes; it is the
|
||||
user's responsibility to iterate as necessary in this case.
|
||||
|
||||
@param port Pointer to port structure.
|
||||
@param buf Buffer containing the bytes to write.
|
||||
@param count Maximum number of bytes to write.
|
||||
|
||||
@return The number of bytes written, SP_ERR_FAIL on failure,
|
||||
or SP_ERR_ARG for invalid arguments.
|
||||
*/
|
||||
* Write bytes to the specified serial port.
|
||||
*
|
||||
* Note that this function may return after writing less than the specified
|
||||
* number of bytes; it is the user's responsibility to iterate as necessary
|
||||
* in this case.
|
||||
*
|
||||
* @param port Pointer to port structure.
|
||||
* @param buf Buffer containing the bytes to write.
|
||||
* @param count Maximum number of bytes to write.
|
||||
*
|
||||
* @return The number of bytes written, SP_ERR_FAIL on failure,
|
||||
* or SP_ERR_ARG for invalid arguments.
|
||||
*/
|
||||
enum sp_return sp_write(struct sp_port *port, const void *buf, size_t count);
|
||||
|
||||
/**
|
||||
Flushes serial port buffers.
|
||||
|
||||
@return SP_OK on success, SP_ERR_FAIL on failure, or SP_ERR_ARG
|
||||
if an invalid port is passed.
|
||||
*/
|
||||
* Flush serial port buffers.
|
||||
*
|
||||
* @return SP_OK on success, SP_ERR_FAIL on failure, or SP_ERR_ARG
|
||||
* if an invalid port is passed.
|
||||
*/
|
||||
enum sp_return sp_flush(struct sp_port *port);
|
||||
|
||||
/**
|
||||
@}
|
||||
@defgroup Errors Obtaining error information
|
||||
@{
|
||||
* @}
|
||||
* @defgroup Errors Obtaining error information
|
||||
* @{
|
||||
*/
|
||||
|
||||
/**
|
||||
Gets the error code for a failed operation.
|
||||
|
||||
In order to obtain the correct result, this function should be called
|
||||
straight after the failure, before executing any other system operations.
|
||||
|
||||
@return The system's numeric code for the error that caused the last
|
||||
operation to fail.
|
||||
*/
|
||||
* Get the error code for a failed operation.
|
||||
*
|
||||
* In order to obtain the correct result, this function should be called
|
||||
* straight after the failure, before executing any other system operations.
|
||||
*
|
||||
* @return The system's numeric code for the error that caused the last
|
||||
* operation to fail.
|
||||
*/
|
||||
int sp_last_error_code(void);
|
||||
|
||||
/**
|
||||
Gets the error message for a failed operation.
|
||||
|
||||
In order to obtain the correct result, this function should be called
|
||||
straight after the failure, before executing other system operations.
|
||||
|
||||
@return The system's message for the error that caused the last
|
||||
operation to fail. This string may be allocated by the function,
|
||||
and should be freed after use by calling sp_free_error_message.
|
||||
*/
|
||||
* Get the error message for a failed operation.
|
||||
*
|
||||
* In order to obtain the correct result, this function should be called
|
||||
* straight after the failure, before executing other system operations.
|
||||
*
|
||||
* @return The system's message for the error that caused the last
|
||||
* operation to fail. This string may be allocated by the function,
|
||||
* and should be freed after use by calling sp_free_error_message().
|
||||
*/
|
||||
char *sp_last_error_message(void);
|
||||
|
||||
/**
|
||||
Frees an error message returned by sp_last_error_message().
|
||||
*/
|
||||
* Free an error message returned by sp_last_error_message().
|
||||
*/
|
||||
void sp_free_error_message(char *message);
|
||||
|
||||
/**
|
||||
@}
|
||||
*/
|
||||
/** @} */
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif /* LIBSERIALPORT_H */
|
||||
|
||||
|
Loading…
Reference in New Issue
Block a user