CONFIG_MCUMGR_SMP_UART_ASYNC_BUFS¶
Number of async RX UART buffers
Type: int
Help¶
The asynchronous UART API requires registering RX buffers for received data; when the RX
reaches the end of a buffer, it will send event requesting next buffer, to be able to
receive data without stopping due to running out of buffer space. At least two buffers
area required for smooth RX operation.
Direct dependencies¶
MCUMGR_SMP_UART_ASYNC && UART_ASYNC_API && MCUMGR_SMP_UART && MCUMGR
(Includes any dependencies from ifs and menus.)
Default¶
2
Kconfig definition¶
At subsys/mgmt/mcumgr/Kconfig:321
Included via Kconfig:8 → Kconfig.zephyr:44 → subsys/Kconfig:35 → subsys/mgmt/Kconfig:9
Menu path: (Top) → Sub Systems and OS Services → Device Management → mcumgr Support → UART mcumgr SMP transport → Use async UART API when available
config MCUMGR_SMP_UART_ASYNC_BUFS
int "Number of async RX UART buffers"
range 2 8
default 2
depends on MCUMGR_SMP_UART_ASYNC && UART_ASYNC_API && MCUMGR_SMP_UART && MCUMGR
help
The asynchronous UART API requires registering RX buffers for received data; when the RX
reaches the end of a buffer, it will send event requesting next buffer, to be able to
receive data without stopping due to running out of buffer space. At least two buffers
area required for smooth RX operation.
(The ‘depends on’ condition includes propagated dependencies from ifs and menus.)