Add USB-C ports

[Toxblh]

Add USB-C ports
Source https://github.com/alin23/Lunar/blob/master/Lunar/DDC/DDC.swift
Checked on DELL U4021QW

[Toxblh]

Last spec 2.2a which updated at Jan 2011 for MCCS/VESA.
But all tested monitors following the ID's looks like it's standard de-facto

[newAM]

Does that linked source file have the same values? There's no references to 0x19 or 0x20 for type-c monitors in there.

I want to make sure this is universal enough before adding it. In #170 / #171, and #93 the value is 27 (0x1B) for type c, and 33 (0x21) in #143. #93 is also a dell which implies this isn't even consistent for the same manufacturer...

[Toxblh]

So yes, I use the app in macos, lines with codes
https://github.com/alin23/Lunar/blob/master/Lunar/DDC/DDC.swift#L79
https://github.com/alin23/Lunar/blob/master/Lunar/DDC/DDC.swift#L80

Thank you for case regarding #143
Looks like MSI publish more values then need (maybe for internal usage with their soft)
But anyway 0x1B (27) and 0x19 (25) don't be overlap with 60(00 11 12 0F 21 22 2F 31) we can guess they following the standard de-facto.

Only the 2 codes above I saw in wild world.

[Toxblh]

Btw

and 33 (0x21) in #143

33 here is not usb-c. The monitor doesn't have the connection physically. Only 3 - DP and 2 HDMI (11 12 0F)

And why it's inconsistent? Like by 2 ports for hdmi and DP in standard
They can use usb1/usb2

My string
'(prot(monitor)type(lcd)model(U4021QW)cmds(01 02 03 07 0C E3 F3)vcp(02 04 05 08 10 12 14(01 04 05 06 08 09 0B 0C) 16 18 1A 52 60( 19 0F 11 12) 62 AC AE B2 B6 C6 C8 C9 CC(02 03 04 06 09 0A 0D 0E) D6(01 04 05) DC(00 03 05) DF E0 E1 E2(00 02 04 0C 0D 0F 10 11 13 0B 1B 14) E4 E5 E7(00 02) E8 E9(00 01 02 21 22 24 27 28 29 2A) F0(00 05 06 0A) F1 F2 FE FD)mccs_ver(2.1)mswhql(1))\x00'

60( 19 0F 11 12)

[Toxblh]

Mmm looked to DB https://github.com/ddccontrol/ddccontrol-db (try to search in repo usb-c as internal standard)
And https://github.com/7orlum/Viewsonic-VP2785-4K-MCCS/blob/master/docs/Viewsonic%20VP2785-4K%20MCCS%20codes.xlsx

Looks like I am based on Dell and LG, others can use diff.
Agree, that not fully correct, even if apply for most cases.

Stay that on your choose.

[newAM]

That's a super useful resource that I didn't know existed, thanks!

I sent an email to VESA asking if there is any plan to update the MCCS for USB Type-C. Maybe I'll get a response that helps resolve this.

[Toxblh]

@newAM Hi, did you receive any answer for your email?

[newAM]

Sadly not even an auto-generated reply :(