# Acronyms and terms

Source: [https://docs.qualcomm.com/doc/80-88500-5/topic/Acronyms.html](https://docs.qualcomm.com/doc/80-88500-5/topic/Acronyms.html)

| Acronym or term | Expansion |
| :---: | :---: |
| ALSA | Advanced Linux sound architecture |
| APT | Advanced package tool |
| DHCP | Dynamic host configuration protocol |
| DMIC | Digital microphone interface |
| DPU | Display processing unit |
| DSP | Digital signal processor |
| EDL/QDL | Emergency download mode or Qualcomm download mode |
| GBM | Graphic buffer malloc |
| GMSL | Gigabit multimedia serial links |
| HAL | Hardware abstraction layer |
| HDMI | High-definition multimedia interface |
| HLOS | High-level operating system |
| IMU | Inertial measurement unit |
| ISP | Image signal processor |
| MIMO | Multiple input multiple output |
| MIPI | Mobile industry processor interface |
| NPU | Neural processing unit |
| PoP | Package-on-Package |
| QMMF | Qualcomm multimedia framework |
| QUD | Qualcomm USB driver |
| QUP | Qualcomm universal peripheral |
| QUTS | Qualcomm unified tools service |
| ROS | Robot operating system |
| SDC | Secure disk card |
| SDK | Software development kit |
| SoM | System-on-Module |
| SPU | Secure processing unit |
| TFLite | TensorFlow Lite |
| TZ | TrustZone |
| UART | Universal asynchronous receiver/transmitter |
| UFS | Universal Flash storage |
| UVC | USB video class |
| V4L | Video4Linux |
| VPU | Video processing unit |
| vSLAM | Visual synchronous localization and mapping |
| WLAN | Wireless local area network |

**Parent Topic:** [References](https://docs.qualcomm.com/doc/80-88500-5/topic/References.html)

Last Published: Nov 25, 2025

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