@@ -29,7 +29,7 @@ RS485 Serial Communications
3. Data Structures Already Available in the Kernel
==================================================
- The Linux kernel provides the serial_rs485 structure to handle RS485
+ The Linux kernel provides the struct serial_rs485 to handle RS485
communications. This data structure is used to set and configure RS485
parameters in the platform data and in ioctls.
@@ -39,13 +39,14 @@ RS485 Serial Communications
Any driver for devices capable of working both as RS232 and RS485 should
implement the rs485_config callback and provide rs485_supported in the
- uart_port structure. The serial core calls rs485_config to do the device
- specific part in response to TIOCSRS485 ioctl (see below). The rs485_config
- callback receives a pointer to a sanitizated serial_rs485 structure. The
- serial_rs485 userspace provides is sanitized before calling rs485_config
- using rs485_supported that indicates what RS485 features the driver supports
- for the uart_port. TIOCGRS485 ioctl can be used to read back the
- serial_rs485 structure matching to the current configuration.
+ struct uart_port. The serial core calls rs485_config to do the device
+ specific part in response to TIOCSRS485 ioctl (see below). The
+ rs485_config callback receives a pointer to a sanitizated struct
+ serial_rs485. The struct serial_rs485 userspace provides is sanitized
+ before calling rs485_config using rs485_supported that indicates what
+ RS485 features the driver supports for the struct uart_port. TIOCGRS485
+ ioctl can be used to read back the struct serial_rs485 matching to the
+ current configuration.
.. kernel-doc:: include/uapi/linux/serial.h
:identifiers: serial_rs485 uart_get_rs485_mode
@@ -107,8 +108,8 @@ RS485 Serial Communications
The Linux kernel provides addressing mode for multipoint RS-485 serial
communications line. The addressing mode is enabled with SER_RS485_ADDRB
- flag in serial_rs485. Struct serial_rs485 has two additional flags and
- fields for enabling receive and destination addresses.
+ flag in struct serial_rs485. The struct serial_rs485 has two additional
+ flags and fields for enabling receive and destination addresses.
Address mode flags:
- SER_RS485_ADDRB: Enabled addressing mode (sets also ADDRB in termios).
Use "struct serial_rs485" to get the references properly recognized. Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> --- .../driver-api/serial/serial-rs485.rst | 21 ++++++++++--------- 1 file changed, 11 insertions(+), 10 deletions(-)