[Bug 266840] umodem: CH552 is not attached

From: <bugzilla-noreply_at_freebsd.org>
Date: Wed, 05 Oct 2022 23:20:15 UTC

--- Comment #7 from Tomoyuki Sakurai <trombik1973@gmail.com> ---
(In reply to Hans Petter Selasky from comment #5)

things get clearer. there are several tools to upload firmware.


although i haven't looked at the sources yet, my guess is that, there is no
kernel driver for the bootloader. when the bootloader is running, these tools
directly talk to it using a protocol.

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