[Bug 51622] New: i2c/ddc support in Wine

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=51622

Bug ID: 51622
           Summary: i2c/ddc support in Wine
           Product: Wine
           Version: 6.15
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: enhancement
          Priority: P2
         Component: -unknown
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

Does it exist? I've tried grepping Wine source code and haven't found anything.

[Bug 51622] i2c/ddc support in Wine

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=51622

--- Comment #1 from Nikolay Sivov  ---
What kind of support do you have in mind?

[Bug 51622] i2c/ddc support in Wine

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=51622

--- Comment #2 from Artem S. Tashkinov  ---
Looks like it lives under dlls/dxva2/main.c with
ERROR_CALL_NOT_IMPLEMENTED/E_NOTIMPL.

(In reply to Nikolay Sivov from comment #1)
> What kind of support do you have in mind?

For controlling the monitor e.g. using:

https://www.nirsoft.net/utils/control_my_monitor.html
https://www.entechtaiwan.com/lib/softmccs.shtm
https://www.entechtaiwan.com/util/moninfo.shtm
https://www.nicomsoft.com/products/i2c/

or vendor specific applications.

[Bug 51622] i2c/ddc support in Wine

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=51622

--- Comment #3 from Artem S. Tashkinov  ---
And lastly https://www.nicomsoft.com/products/display-tuner/

I don't think it's worth it considering the vanishingly small number of
applications which use this API.

[Bug 51622] i2c/ddc support in Wine

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=51622

--- Comment #4 from Austin English  ---
(In reply to Artem S. Tashkinov from comment #3)
> And lastly https://www.nicomsoft.com/products/display-tuner/
>
> I don't think it's worth it considering the vanishingly small number of
> applications which use this API.

It's still a valid request, just a low priority.

[Bug 51622] i2c/ddc support in Wine

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=51622

Matt Corallo  changed:

What    |Removed                     |Added
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                 CC|                            |remailer-client-f55e4fe03be
                   |                            |[e-mail]

--- Comment #5 from Matt Corallo  ---
Another example of the kinds of software that this would allow support for -
the controller for the FSP Twins PSUs -
https://www.fsplifestyle.com/en/product/TwinsPRO900W.html

Its SMBus/PMBus under the hood but there's no such thing as a generic client
for it, so using the manufacturer client would be nice.

Its not super uncommon to see these kinds of devices with Windows-only control
software.

[Bug 51622] i2c/ddc support in Wine

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=51622

Zeb Figura  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |[e-mail]

--- Comment #6 from Zeb Figura  ---
I don't think Windows has builtin support for I2C? Are these applications
shipping their own (PCI?) drivers?
> Looks like it lives under dlls/dxva2/main.c with ERROR_CALL_NOT_IMPLEMENTED/E_NOTIMPL.

I don't think this is related to I2C, it's just an API the program is using to
enumerate display devices, probably a high level wrapper over setupapi.

[Bug 51622] i2c/ddc support in Wine

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=51622

--- Comment #7 from Matt Corallo  ---
Oh I have no idea, at least the FSP controller is connected via a standard USB
<-> I2C bus (that Linux has no problem with, but the control software doesn't
know how to talk to /dev/i2c-*). If there's some strace equivalent I can
provide a dump.