[Bug 266840] umodem: CH552 is not attached
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Date: Wed, 05 Oct 2022 23:20:15 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=266840 --- Comment #7 from Tomoyuki Sakurai <firstname.lastname@example.org> --- (In reply to Hans Petter Selasky from comment #5) things get clearer. there are several tools to upload firmware. https://github.com/MarsTechHAN/ch552tool https://github.com/hexeguitar/CH55x_python_flasher 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. -- You are receiving this mail because: You are the assignee for the bug.