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loader: add script to de-register ftdi_sio

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This commit is contained in:
Paul Mathieu 2025-03-12 13:43:56 -07:00
parent e955ad7b91
commit ca2ba3ddda
2 changed files with 20 additions and 1 deletions
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8
alchitry-loader/Makefile
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@ -1,8 +1,16 @@
export DOCKER_BUILDKIT=1
.PHONY: loader
loader: ## build the loader in docker (linux)
docker build -o . .
.PHONY: ftdi-unbind
ftdi-unbind: ## unbind the ftdi-sio devices on linux (uses sudo)
sh -c "cd /sys/bus/usb/drivers/ftdi_sio && \
for dev in *:*; do \
echo \$$dev | sudo tee unbind ; \
done"
.PHONY: clean
clean:
rm -rf loader $(objects)

13
alchitry-loader/README.md
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@ -28,6 +28,17 @@ Test it out
`./alchitry_loader`
## Linux and macOS and libftd2xx
On Linux (and macOS?) the default kernel drivers prevent libftd2xx from working properly.
On Linux, you can use this to de-register all ftdi-sio devices (until plugged again):
```
make ftdi-unbind
```
## Usage
```
@ -60,4 +71,4 @@ flash memory. It acts as a bridge from the JTAG port to the SPI of the flash mem
The source for the bridge files can be found here https://github.com/alchitry/au-bridge
This isn't needed for the Cu which has direct access to the flash over the SPI protocol.
This isn't needed for the Cu which has direct access to the flash over the SPI protocol.