BUSY (reference) in projects: loramac-node-3.4.0

/Zephyr-latest/subsys/usb/device_next/class/
D	usbd_msc_scsi.h	`23 BUSY = 0x08, enumerator`
/Zephyr-latest/boards/shields/semtech_sx1262mb2das/doc/
D	index.rst	`24 \| D3 \| SX1262 BUSY \|`
/Zephyr-latest/boards/shields/waveshare_epaper/doc/
D	index.rst	`28 \| D7 \| EPD BUSY \| EPD Busy Output \|`
/Zephyr-latest/boards/st/st25dv_mb1283_disco/doc/
D	index.rst	`48 - GPO configurable as RF WIP/BUSY output, to indicate that an RF operation is ongoing`
/Zephyr-latest/boards/electronut/nrf52840_papyr/doc/
D	nrf52840_papyr.rst	`119 * BUSY = P0.3`