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<p>Hello everyone.</p>
<p>I have a Linux Serdev driver [1] that uses a specific UART. To
actually access the UART directly (`/dev/ttyS4`), I have to enable
a device tree [2] and reboot the device. I was wondering if there
was a better way to go about it.</p>
<p>Is it possible to disable bcfserial (thereby enabling
`/dev/ttyS4`) when the driver is removed (using rmmod)? I need
access to `/dev/ttyS4` to flash new firmware to BeaglePlay CC1352
using bsl [3]. Having to restart everytime I or anyone else wants
to update firmware is not great, while developing.</p>
<p>I am looking for a cycle like this: `rmmod driver` -> `flash
firmware` -> `modprobe driver`.</p>
<p><br>
</p>
<p>Ayush Singh<br>
</p>
<p><br>
</p>
<p>[1]:
<a class="moz-txt-link-freetext"
href="https://git.beagleboard.org/gsoc/greybus/beagleplay-greybus-driver/-/tree/develop">https://git.beagleboard.org/gsoc/greybus/beagleplay-greybus-driver/-/tree/develop</a></p>
<p>[2]:
<a class="moz-txt-link-freetext"
href="https://git.beagleboard.org/beagleboard/linux/-/blob/v5.10.168-ti-arm64-r108/arch/arm64/boot/dts/ti/overlays/k3-am625-beagleplay-bcfserial-no-firmware.dts">https://git.beagleboard.org/beagleboard/linux/-/blob/v5.10.168-ti-arm64-r108/arch/arm64/boot/dts/ti/overlays/k3-am625-beagleplay-bcfserial-no-firmware.dts</a></p>
[3]:
<a class="moz-txt-link-freetext"
href="https://git.beagleboard.org/beagleconnect/zephyr/zephyr/-/blob/sdk-next/boards/arm/beagle_play_cc1352/cc2538-bsl.py">https://git.beagleboard.org/beagleconnect/zephyr/zephyr/-/blob/sdk-next/boards/arm/beagle_play_cc1352/cc2538-bsl.py</a>
<p></p>
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