Enabling USB via config.txt
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- Stars
- 496
- Forks
- 86
- PR merge metrics
- No merged PRs in 30d
Description
Attempting to use a touch screen with the cb1. They say to change the config.txt file which is never created on the current images. Adding it manually doesn't enable USB either.
support said:
Hello, this file is in your system settings. A USB 2.0 Hub is loaded on the Pad5 board. In order to save power, the USB port of CM4 is disabled by default. If you need to enable it, you need to add the following contents to the config.txt file:
dtoverlay=dwc2,dr_ mode=host
Does anyone know how to enable USB when the config file doesn't exist?
Contributor guide
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Research direction
Start by checking the current CB1 image for where system settings and config.txt are stored, then compare that location with the USB/CM4 setup described in the report. Reproduce the disabled-USB behavior and verify whether the stated dtoverlay=dwc2,dr_ mode=host setting changes it; done means USB works with the touch-screen setup or the supported configuration is documented.
Written by the indexing model from the issue text.
Assessment
- Domain
- embedded-iot, operating-systems
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100