Add libserialport as an external library for MSVC build

[mcuee]

This is to address Issue #1552.

• To add libserialport support to Windows MSVC build #1552

[mcuee]

Not working yet.

[mcuee]

Related issue from avrdude-libserialport

• Add CMake support libserialport#4

[mcuee]

Okay, I think we may need to re-organize libserialport as what Marius designed how the external libraries should be organized.

https://github.com/avrdudes/libftdi
https://github.com/avrdudes/libelf
https://github.com/avrdudes/libusb
https://github.com/avrdudes/libhidapi

Basically:

root directory
         <include>
         <src>
         CMakeLists.txt

[mcuee]

I have created the following avrdude-libserialport for this purpose.
https://github.com/mcuee/avrdude-libserialport

PS C:\work\avr\avrdude-libserialport> ls

    Directory: C:\work\avr\avrdude-libserialport

Mode                 LastWriteTime         Length Name
----                 -------------         ------ ----
d----           30/5/2026  8:40 am                include
d----           30/5/2026  8:28 am                src
-a---           30/5/2026  8:24 am            518 .gitignore
-a---           30/5/2026  8:25 am           1186 AUTHORS
-a---           30/5/2026  8:33 am            726 CMakeLists.txt
-a---           30/5/2026  8:25 am           7816 COPYING
-a---           30/5/2026  8:25 am           6131 NEWS
-a---           30/5/2026  8:25 am           3210 README_libserialport
-a---           30/5/2026  8:24 am             71 README.md

[mcuee]

One step closer but not yet there.
https://github.com/avrdudes/avrdude/actions/runs/26669906962/job/78610897110

[mcuee]

After a lot of trial and error, now it seems to be okay.
https://github.com/avrdudes/avrdude/actions/runs/26704517415

[mcuee]

I think it is better to move my libserialport MSVC port (which is modeled after Marius' libftdi/libusb organization) here under avrdude organization.

@stefanrueger and @MCUdude

Just wondering if you have the right to create a new repo libserialport-avrdude and grant me the admin right.

I do not want to touch the existing fork here since I want to use it to contribute to the upstream libserialport.

• Adding CMake and github action sigrokproject/libserialport#29

[stefanrueger]

I think it is better to move my libserialport MSVC port here under avrdude organization

I agree but believe that only @dl8dtl has the right to cretate that directory. @dl8dtl?

[mcuee]

@dl8dtl

I already have access to the following repo.
https://github.com/avrdudes/libserialport

I would like to be able to be the admin of the following repo, or at least with code commit right.
https://github.com/avrdudes/libusb
https://github.com/avrdudes/libreadline (not really used as of now)
https://github.com/avrdudes/libhidapi
https://github.com/avrdudes/libftdi
https://github.com/avrdudes/libelf

If possible, I am wondering if you can open the organization access to me, @stefanrueger and @MCUdude, so that we can create new repo and also carry out admin work on the above-mentioned avrdude MSVC supporting repos. libelf repo might be even useful for macOS in the future.

[stefanrueger]

Oops, wrong PR closed

[mcuee]

This PR should be post 8.2 release.

Converted to draft first -- we need to sort out the repo issue first and update this PR.

[mcuee]

@dl8dtl

I already have access to the following repo.
https://github.com/avrdudes/libserialport

I would like to be able to be the admin of the following repo, or at least with code commit right. Thanks.
https://github.com/avrdudes/libusb
https://github.com/avrdudes/libreadline (not really used as of now)
https://github.com/avrdudes/libhidapi
https://github.com/avrdudes/libftdi
https://github.com/avrdudes/libelf

[mcuee]

Close this PR for now as the repo issue has not been sorted out.