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GeezerVison is showing stackoverflow.com — Newest 'usb' Questions

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7,930 questions

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Score of -5 -5 votes
1 answer 1 answer
99 views 99 views

Renesas FSP UART receive callback not firing in half-duplex RS-485 communication [closed]

I am developing firmware in e² studio using Renesas FSP. My goal is to establish half-duplex RS-485 communication between a Renesas MCU with RS485 and a PC using a RS485 - USB DTech adapter. Hardware ...
  • c
  • usb
  • serial-communication
  • rs485
Saranya K's user avatar
Saranya K
  • 7 reputation score 7
asked Oct 14 at 8:55
Score of 0 0 votes
0 answers 0 answers
49 views 49 views

USB PID D-Input Rumble: Block Load Report returns all zeros on PXN V9 Gen2

I am trying to implement a force feedback (rumble) effect for the PXN V9 Gen2 steering wheel in D-Input mode. While X-Input mode works perfectly by sending standard Xbox rumble packets, D-Input ...
  • usb
  • driver
  • stm32f4
Ronnakrit Tongbaiyai's user avatar
Ronnakrit Tongbaiyai
  • 1 reputation score 1
asked Jul 3 at 21:30
Score of 0 0 votes
0 answers 0 answers
50 views 50 views

How to get a unique serial identifier for a PIC32 to USB device?

I have several PIC32's connected to a computer via a custom PCB to USB. I have custom firmware flashed to these using the PICKIT 5 debugger/programmer. I want to be able to identify these devices ...
  • serial-port
  • usb
  • identifier
  • pic32
  • tooling-recommendation
Kepler7894i's user avatar
Kepler7894i
  • 305 reputation score 305
asked Jun 11 at 16:02
Score of 0 0 votes
0 answers 0 answers
119 views 119 views

Understanding Android open accessory

I have created an electron app to provide the sync service that my business logic will be hosted from, and it would control an expo app (barebone) to accept info from the host. The problem is I keep ...
  • android
  • expo
  • usb
user32484004's user avatar
user32484004
  • 1 reputation score 1
asked Apr 16 at 23:09
Score of 0 0 votes
1 answer 1 answer
44 views 44 views

Endpoints/Pipes of Standard USB Classes

How can I find out which USB Device Classes use which Endpoints/Message Types?(document & page side/ code file) And do device classes introduce any overhead to the data packets I am sending?(not ...
  • embedded
  • usb
  • stm32
  • stm32cubeide
  • advice
Yony's user avatar
Yony
  • 1 reputation score 1
asked Apr 7 at 9:49
Score of 0 0 votes
1 answer 1 answer
158 views 158 views

Pymodbus library communication delay

I have the following example code. This code updates the frequency setting of the motor currently in use and gives it a forward movement command. I also add a specific waiting time in seconds while ...
  • python
  • usb
  • communication
  • pymodbus
furkan's user avatar
furkan
  • 9 reputation score 9
asked Mar 2 at 11:47
Score of 0 0 votes
1 answer 1 answer
63 views 63 views

Avrdude flash fails on MacOS Monterey

I'm stuck. I purchased an old refurbished MacOS laptop and cannot get avrdude to flash my development firmware. I'd appreciate some help getting avrdude to work on this machine. I installed the FTDI ...
  • macos
  • usb
  • macos-monterey
  • avrdude
mds's user avatar
mds
  • 129 reputation score 129
asked Feb 10 at 23:08
Score of -3 -3 votes
1 answer 1 answer
139 views 139 views

Can USB CDC receive data byte-by-byte in CDC_Receive_FS(), or is it always packet-based?

I’m working with an STM32 microcontroller using USB CDC (Virtual COM Port) and handling incoming data in CDC_Receive_FS(). I want to understand the behavior for UART-style communication: If the host ...
  • c
  • embedded
  • usb
  • stm32
  • cdc
Keerti Madhuvantika 's user avatar
Keerti Madhuvantika
  • 11 reputation score 11
asked Jan 28 at 7:06
Score of 1 1 vote
0 answers 0 answers
80 views 80 views

Android (Studio) + Dragino LA66 USB

I am working on an Android app to control a drone. I am using the Dragino LA66 USB LoRa device for comm. Unfortunately, I am having difficulty with getting a signal transmitted to my Arduino board. ...
  • android
  • serial-port
  • usb
  • lora
pbhuter's user avatar
pbhuter
  • 445 reputation score 445
asked Jan 24 at 16:25
Score of 2 2 votes
1 answer 1 answer
137 views 137 views

What is the right format of packets in ADB pull?

I am working on an embedded RTOS system, and I want to support ADB file pulling based on open-source USB stack. I read the document about ADB protocol (https://github.com/cstyan/adbDocumentation), and ...
  • c
  • usb
  • adb
  • freertos
wangt13's user avatar
wangt13
  • 1,383 reputation score 1383
asked Jan 20 at 2:39
Score of 0 0 votes
1 answer 1 answer
363 views 363 views

How can I get a USB HID device to enumerate as a xinputhid.sys compatible device?

I'm trying to get an ESP32-S3 TinyUSB device to show up as an XInput compatible device on Windows. There appears to be three ways to do this: XUSB, XInputHID & GIP, with a recommendation to use ...
  • usb
  • hid
  • xinput
TrayMan's user avatar
TrayMan
  • 7,545 reputation score 7545
asked Jan 7 at 22:04
Score of 1 1 vote
1 answer 1 answer
109 views 109 views

Failure to enumerate USB device with DWC2 USB host

I am working on an embedded RTOS system for a 32-bit MIPS SOC, which supports DWC2 OTG. (It can run Linux well.) I ported an open-source USB stack to this system by following the porting guidance. ...
  • c
  • usb
  • mips
  • rtos
  • mips32
wangt13's user avatar
wangt13
  • 1,383 reputation score 1383
asked Dec 27, 2025 at 1:33
Score of -1 -1 votes
0 answers 0 answers
145 views 145 views

How to get count of physical USB ports on Windows (not changing when devices are attached) using Go?

I am working on a Windows application written in Go lang, and I need to programmatically determine the number of physical USB ports available on the system. My requirement is: The count should ...
  • windows
  • go
  • usb
  • advice
User0987's user avatar
User0987
  • 194 reputation score 194
asked Dec 23, 2025 at 11:54
Score of 0 0 votes
0 answers 0 answers
111 views 111 views

Question about PMA Layout and BTABLE Size on STM32F103

I have two possible interpretations of how the USB BTABLE and PMA layout work on the STM32F103. I will provide two diagrams (Figure A and Figure B) to illustrate the scenario. STM32F1 USB PMA Scenario:...
  • usb
  • stm32
  • stm32f1
rd-dev's user avatar
rd-dev
  • 1 reputation score 1
asked Dec 15, 2025 at 4:07
Score of 0 0 votes
1 answer 1 answer
78 views 78 views

Electron crash due to libusb conflict between yoctolib-cjs and other USB libraries

I am developing a Windows Electron application and I suspect a USB / libusb conflict between the usb library and Yoctopuce’s JavaScript API (yoctolib-cjs/yocto_api). When both are used in the same ...
  • node.js
  • electron
  • usb
  • libusb
이윤호's user avatar
이윤호
  • 21 reputation score 21
asked Dec 13, 2025 at 17:42

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