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| author | Vadim Mikhailov <mvp@users.noreply.github.com> | 2020-01-28 11:24:49 -0800 |
|---|---|---|
| committer | Vadim Mikhailov <mvp@users.noreply.github.com> | 2020-01-28 11:24:49 -0800 |
| commit | bd92bcef2fb1e539614f8f35d7c9ecf4c3d42ebf (patch) | |
| tree | 125d47f3efe33c188ad76f7dcd4db774ded506de | |
| parent | ea70731854ca3610f5a49a13251226724f76b177 (diff) | |
Add a warning and link how to update RPi4B firmware to make power switching work
| -rw-r--r-- | README.md | 3 |
1 files changed, 3 insertions, 0 deletions
@@ -290,6 +290,9 @@ For reference, supported Raspberry Pi models have following internal USB topolog ##### Raspberry Pi 4B + > :warning: You may need to [update firmware](https://www.raspberrypi.org/documentation/hardware/raspberrypi/booteeprom.md) +to vl805 00137ac or later to make power switching work on RPi 4B. + * USB2 hub `1`, 1 port, only connects hub `1-1` below. * USB2 hub `1-1`, 4 ports ganged, dual to USB3 hub `2` below, all ports controlled by port 4: |