Reference Driver

73M1866B/73M1966B Reference Driver User Guide UG_1x66B_015
8 Rev. 2.7
1.2 Conventions Used in this Guide
This document uses the following conventions:
• Software code, IOCTL names, FXO events, data types, and Linux commands are presented in
Courier font.
• A table with a blue header is a summary table. A table with a gray header is a detail table.
1.3 Acronyms
APOH – Another Phone Off Hook
BSP – Board Support Package
DAA – Data Access Arrangement
FXO – Foreign eXchange Office
ISR – Interrupt Service Routine
IOCTL – I/O Control
NOPOH – No Phone Off Hook
POH – Phone Off Hook
SPI – Serial Peripheral Interface
GPIO – General Purpose Input/Output