PatM

March 19, 2021

I am running the latest Armbian 21.02.3 on two NanoPCT4s.

Thanks to everyone for this. I didnt think I would see this performance on this device.

But here it is and I see Armbian is getting good notice for this.

I dont know how they did it but these devices are running very well.

I am a little tired this week so I dont have any technical details.

I want to just ramble (opinionate) on how nice this is and what I like about it.

I am running standard Focal Gnome Desktop from Armbian Download.

I just disable the pwm-fan module and run hot.

As long as I dont make -j6 I can avoid meltdowns.

I run Firefox and Microsoft VSCode. I run a complex desktop and my

standard install involves a day of burnin compilation.

I can run Firefox videos and Microsoft Code.

By the way Code can now be downloaded direct from Microsoft.

I run a lot of Python and JavaScript and C++ [avoid Java and C# at the moment

but really I dont have much time considering I do more and more C/C++]

and use Python as scripting language for C. I compile Sage Math 9.2

and that will halt this machine at make -j6 and no fan.

with fan, no problem. but make -j3 works OK with no fan.

After compiling these little ARM devices run SageManifolds doing complex

Jupyter Lab interactions. Pretty slick.

So I think this is a wonderful desktop.

I know the Gnome people own GItHub and Microsoft

TypeScript backended on GitHub integrated with the wonderful

Microsoft Code is a great desktop that Armbian is Smart to invest in.

more later.

July 10, 2020

I downloaded and compiled current. There was a couple errors

I will try again using "dev" since that is post 5.6

arch/arm64/boot/dts/rockchip/rk3399-nanopc-t4.dts:167.35-169.5: ERROR (phandle_references): /usb@fe800000/usb@fe800000/port/endpoint: Reference to non-existent node or label "fusb0_role_sw"

arch/arm64/boot/dts/rockchip/rk3399-nanopc-t4.dts:146.29-148.5: ERROR (phandle_references): /syscon@ff770000/usb2-phy@e450/otg-port/port/endpoint: Reference to non-existent node or label "usbc_hs"

arch/arm64/boot/dts/rockchip/rk3399-nanopc-t4.dts:124.29-126.5: ERROR (phandle_references): /phy@ff7c0000/dp-port/port/endpoint: Reference to non-existent node or label "usbc_dp"

arch/arm64/boot/dts/rockchip/rk3399-nanopc-t4.dts:136.29-138.5: ERROR (phandle_references): /phy@ff7c0000/usb3-port/port/endpoint: Reference to non-existent node or label "usbc_ss"

ERROR: Input tree has errors, aborting (use -f to force output)
make[2]: *** [scripts/Makefile.lib:291: arch/arm64/boot/dts/rockchip/rk3399-nanopc-t4.dtb] Error 2
make[2]: *** Waiting for unfinished jobs....
make[1]: *** [scripts/Makefile.build:500: arch/arm64/boot/dts/rockchip] Error 2
make: *** [Makefile:1246: dtbs] Error 2

Thanks. I am interested in learning this. The changes are a bit extreme. But I learn tons as I go.

I dont have a DisplayPort but I have a few Anker Type-C hubs and power strips.

To be frank, I bought the Metal Case and Heat-sink Fan. This has improved things.

I run 4.4.213 and Ubuntu Focal Desktop. I am pretty happy now and I have

decided on new programming directions. I run VSCode on my NanoPC-T4.

I am excited by the Gnome3 and moving to TypeScript and Node.

I mostly run Sage Math and Python Science software. This box compiles and runs some advanced

software. Nonetheless I am learning ARM architecture and will keep at the RK3399 and Synopsis

SoC architecture. I am going to see if the new 5.x kernel can just connect my Anker Type-C hub.

I do want to thank everyone for their work on the NanoPC.

NOTE: the Ubuntu NetworkManager Setting has a bug and crashes when updating.

I just dont use the GUI. I am not saying running Ubuntu Gnome3 Desktop is ready to go.

It is actually amazingly good though. anyhow...but it will be better under new Panfrost and friends.

July 2, 2020

Anyway I doubt anyone here expected USB PD to work. I did plug my Anker TypeC PD to both NanoPCT4 and Firefly.

And they didnt work in different ways. The FireFly ignored the TypeC connection and stayed Host.

When I plugged type C power into my 7-1 hub, then the hub came to life and worked.

The NanoPCT4 was more sophisticated. Running "Legacy" in both cases, but Firefly is different from NanoPC.

The DisplayPort on the NanocPCT4 is probably working but I dont have a DP monitor.

When a TypeC connection is made, the Nano FUSB302 wakes and it configures DP with pin connection Ox8,

and it sets itself up as "Downward Facing Port". OK this is interesting stuff to understand and

important for embedded. but it is a hack. when I plug my 7-1 Anker into my NanoPC,

the NanoPC switches to Upward Facing Port and accepts power from the Anker.

OK. That is not what I want since my 7-1 hub is no longer something interesting to my Nano.

anyway I will conclude by saying I may be missing something but partly did anyone expect it to work?

No. I dont know what happened when my Nano "accepted power" from Anker and went into UFP mode.

except I probably dont want that to happen. but the hack is if you connect a DP Monitor to the Nano

it is going into DP mode. ....

I am using Armbian Build and run images it creates onto local SD.

My Legacy Nano build is 4.4.213 from FriendlyArm repo but FireFly I think is from kernel.org

anyway I am not going to plug Anker PD into my Anker 7-1 Hub.

One day it may work. I am following a path that everything will just plug into

a USB4 fabric on my desktop ... compute sticks, network cards.

my desktop will just be a USB4 fabric right?

I hope rockchip is forking a 5.9.y SDK for their USB4 chips...

I am interested. in the meantime I will stick with Legacy and not

really do USB PD at the moment. I bet I can plug a DP port in and it will work.

just do offer power to the nano. I am going to keep studying the TRM and DeviceTree

but I will conclude now

July 1, 2020

A brief update: I read over the USB section of the RK3399 TRM.

Clearly the RK3399.dtsi has been hosed in the linux 5.x.y series.

But the situation is this: I am happy running the Focal Armbian Legacy Server (4.4.213) /Ubuntu Desktop.

I even ditched Bionic / XFCE on my other NanoPCT4.

Both are running Gnome3/Focal and that is very nice.

So obviously the USB transition from linux 4.4 to 5.4 is a "learning experience" for me LOL

Hey but I did buy an Anker PD brick.

I am afraid to plug it in. Can someone tell me what happens?

I have $50,000 insurance policy so I will try it out on my FIRELY.

HA, I will get back with that experiment.

USB PD is an interesting topic and the FUSB is really more concerned with that then DisplayPort.

I understand that the HDMI is just a Gadget interface. I only use HDMI/DVI and have no DisplayPort.

But OK this is the point: The Legacy Kernel 4.4.213 very well might work with TypeC.

It appears to. I see a function PD device. USB PD appears to be active and TypeC connections are indeed handled.

Its just that the software architecture from linux 4.4 to 5.4 is completely different for USB.

pretty much. But the FUSB is "part of USB" in 5.4 but is just an "multi-function" device in 4.4

Well I am going to focus on how well TypeC works in Armbian Legacy.

June 21, 2020

I really like the magician who compiled Armbian Legacy Minimal Server using Focal.

I then plop Ubuntu Focal Minimal Desktop and things work very, very well.

I have done this for one of my NanoPCT4s and my Firefly RK3399.

I can watch the kernel logs easier than using wireshark.

In fact I think watching the logs and /sys is all I will probably need.

Here's the thing: right now USB TYPE C is at least working properly wrt to what I can see.

It correctly sets PD of my Anker Type C hub to 5V. The FUSB has to be connected to the DWC3

via setting "extcon" to the phandle of the FUSB. That will probably fix the connection issue at least.

The rockchip code is probably going to handle this in the drd.c file.

Armbian Build has placed me further on the #trunk and I have some X resolution problems.

I dont actually have a DisplayPort. I intend to get one. I have a DVI monitor.

I am going to try to switch to Dev mode on the NanoPCT4.

It only supports Current.

June 20, 2020

I discovered a use for my 16GB emmc: a linux test setup. I now run

Armbian Minimal Server (Legacy for "default", Current and now Dev for "testing")

So I figured out how to compile all possible Focal Armbian Minimal Servers for NanoPC-T4.

I also rebuilt my Firefly RK3399 for testing. What I have discovered is that

Ubuntu Minimal Desktop (Gnome 3) works pretty well on Armbian Legacy Server.

"Current" Servers running 5.4.y work extremely well. I am now compiling "Dev".

[oh yeah extremely well not including type-c and wireless ...

5.4.y performance and sophistication overall is amazing]

anyway, I know a lot more about USB. I read over my Firefly device tree for comparisons.

clearly NanoPi descended from Firefly. I am aware of the EXTCON issue and DRD vs OTG.

I have to get APTLY going today and then I will be able to focus again on USB 100%.

Of course I am also learning linux kernel configuration in general but USB in particular.

June 17, 2020

I am working away learning type-c. I know I am in the eye of the storm here.

Massive changes. I see a dozen drivers have disappeared including rockchip-dwc3 and replaced with

of-simple-dwc3(sic) etc etc. But USB4 is like ARM64. a whole new level of power. literally.

it is exciting and I am accumulating some insights;

for example the real issue appears that OTG is not working at all.

that should not be surprising. has anyone even tested OTG yet? LOL

I havent. I suppose I can attach one nano to another and see what happens.

I am planning nice investments to test TYPE-C throughly.

In the meantime set dr_mode to host and forget about type c. ugh

not really. I am thinking about changing kernel off 5.4.y trunk to 5.7 or something.

but I am on this all of the time now. I want to learn 50Gbps

usb/pcie integration WOW! and I am going to invest in some TYPE C Power Delivery

(probably the Anker .... $100! wow)

June 15, 2020

a final update on this for now:

there are issues with setting dr_mode and phys properly.

the nanopi4.dtsi wants to set one usbdrd dr_mode to "host" but it

sets a reference to an "otg" port phys.

If I set both dr_modes (there are only two usb3 targets) to "host"

then both port phys to the proper "host" phy phandles.

then my type c port works correctly with both Anker C hubs:

the 5 in 1 and 7 in 1.

if both usb ports dr_modes are set to "otg" and phys are left pointing to "otg" phy usb ports,

then it doesnt work. I am going to test that again. for some reason both ports dr_modes

set to "otg" is a problem. but setting both to "host" requires changing the phys string.

to point to "host" ports. that works.

anyway I can trace my Hubs now and use WireShark to trace USB and understand more about,

I havent tested alt-modes or power-distribution. USB4 will be awesome so I will be doing

this for a while LOL

June 15, 2020

a brief update. I managed to get the Type-C to actually work in Current Focal as a hub as it did in Legacy Bionic.

It involves setting dr_mode to "host". the root rk3399 config is to set dr_mode="otg".

I will learn more about "dr_mode". the type-a port is set to "host" but the type-c wasnt.

but I have invested in learning the /sys structures.

esp. /sys/bus/platform /sys/devices/platform /sys/firmwar

I also know the DT for my T4. I am learning Arm architecture

so I am learning the details and know the structure of USB

pretty well now.

I also am on my fourth iteration of simplifying the RK3399

kernel config. I have simplified Platform selection,

AV device selection, and USB configuration.

the /sys/bus/platform/drivers folder is greatly reduced.

The kernel is functional enough to boot a desktop so it cant be too bad.

I am breaking something with ULPI and the OF_SIMPLE_ DWC3 parameters.

I am going to learn more about why the driver selection uses "simple' DWC3 driver.

this involves some interaction with DT so it is interesting

anyway I am committed to being able to work with this "chosen" Arm platform.

I noticed ASUS RK3399Pro system uses Debian 9 .... 4,4 *sigh*

git werkin

June 14, 2020

I have WireShark running well. I traced USB ports. I can see my

Type=A 4 port USB 3.0 hub on USBMON8. a bit of chatter

when I replug. Nothing on USBMON6 except the linux root hub.

I enjoy this. I did find FUSB302 in the legacy kernel.

FUSB is a Multi-Function-Device. This makes sense,

from SBC design that there would be quite of few of these.

the Arm PMU is a power device. I see it in the DT.

So the FUSB302 driver is logging in the legacy kernal

and may actually be working. LOL i dunno.

I will trace USB type C on my legacy 4.4.213 kernel.

June 14, 2020

two new directions. I installed Wireshark. I am trying to understand how to capture USB with Wireshark.

OK that is weirder than it should be but I also want to learn PCI and Ethernet [DesignWare] so I am going to

be staying with the USB - Wireshark level until I get USB tracing working. but I am looking at DeviceTree.

I see this weirdness:

pat@nanopct4:/proc/irq$ tree | grep usb
│   ├── rockchip_usb2phy
│   ├── rockchip_usb2phy_bvalid
│   ├── rockchip_usb2phy
│   └── xhci-hcd:usb5
│   └── xhci-hcd:usb7
│   ├── ehci_hcd:usb1
│   ├── ohci_hcd:usb3
│   ├── ehci_hcd:usb2
│   ├── ohci_hcd:usb4

No usb3phy in the DTS.

I am looking at the magical "compatible" string in DTS.

there are rk3399-dwc3 and dwc3 ... that is confusing.

so my goal is to focus on Synopsis and Rockchip device IO platforms

and I simplify and break. like replacing all rk3399-dwc3 with plain dwc3

is not a working idea.

June 13, 2020

I compiled latest Focal 5.4.46 and I stripped out a lot of strangeness in Kconfig for NanoPC-T4.

I can confirm that I am running the new kernel and nothing broke. How's that? that counts.

I am committed to cleaning this system up. I dont want 3 Platforms selected.

And I dont want two USB frameworks activated. So IdeaChip is gone and Sun-Xi weirdness gone.

Here's something weird:

The Legacy image 4.4.213 has no source code for typec in the compiled kernel (I compiled it and looked)

no fusb302 and tcpm. But there are messages in the log from those modules.

Somehow Legacy kernel actually does have fusb302 and tcpm running.

I suspect that I need to reach into the lower depths: what blobs are being inserted and how?

I see the "patch ram" stuff. I dont really know what blobs I am running.

I will find out. I am focused on RK3399 so I want to strip it all down to basics.

I will search for fusb302 in the legacy source.

more weirdness:

On Current 5.4.46 focal, I can see (using USBMON) messages from fusb302 and tcpm.

but nowhere in dmesg or logs are any messages at all.

so legacy represents a lot of ARM historical weirdness. what else is new?

I need to get comfortable with the blobs being inserted and how. I dont know that stuff.

I think we are trying hard to get away from all that right?.

so I need to look at the DeviceTree and PHY world.

June 13, 2020

I've made some progress. I have been building Minimal Kernel for legacy and current, Bionic and Focal (and some Buster).

I now understand the differences and how 4.4.213 is from FriendlyArm.

I understand the SDK lockin since I have been studying Firefly and Friendly for over a year

and know the history of the Rockchip 4.4 SDK. I guess being stuck at 4.4 SDK is the lockin problem.

The 4.4.213 kernel is pretty good though. My 256G workstation SD is now running

legacy Focal with Ubuntu-Desktop-Minimal.

That is the starting point of my desktop. I dont want the gnome evolution stuff.

whatever. I know embedded people have unique interests but the RK3399 is my

lowend targetted ARM platform. They call that highend I think LOL.

I think Minimal installs of Server and Desktop is a good starting point.

I have been munching Debian packages for a couple years. My FireFox AV1 system

is working pretty well. bluetooth,pulseaudio. I need to clean that up though.

I will be exploring more Armbian Deb config simplifications .

I think I will specialize in Synopsys ARM SoC. I have learned enough Armbian Build

to move on to KConfig analysis. I assume legacy SDK is involved but there is a ton of

weird stuff in the FriendlyArm .config. For example I have just built a kernel

without ChipIdea USB platform. It compiled so I will find out what breaks if I leave it out.

I also leave out a couple of other strange options. Why Sunxi platform ?? I just select Rockchip platform.

I am going to run my first modified kernel today.

I dont think I need WireShark USB capabilities to get going. I need to keep learning Armbian Build

and KConfig in a cross - compile environment. So I am managing config files and deb/img outputs.

From there I need to learn more about Device Tree (I am learning u-boot and DT).

I suspect there is PHY stuff going on here and I need to learn how to trace that stuff.

I have gotten very familiar with the USB logging and USBMON.

so I am going to learn DesignWare and keep going.

I am pretty certain I should see some USBMON chatter on my channel when

I attach my Anker 5-1 Type C Hub. Well what happens exactly when I plug my Hub in?

I will know soon enogh. There are PHY issues here.

June 12, 2020

I have compiled Minimal Server versions of Bionic and Focal and Buster

both current and legacy. RUnning Bionic-legacy allows me to use usbmon

to watch when I connect an Anker 5-1 to the port C.

a whole ton of talk appears. SO at least it works like we knew Bionic-legacy works.

New hardware...so I can study legacy and current bionic and start looking at

config variations. The USB is just an excuse to learn Armbian Build and kernel config/device tree.

But I am starting to see how this process roles. and USB is fascinating

usbmon on bionic-legacy does not present fusb302 and tcpm interfaces,

as suspected.

June 12, 2020

I am building Buster Minimal Server to "start over from the top"

and to have something to compare with Focal Minimal Server.

I like trying to master the Minimal build process.
It is easier to do these Buster/Focal comparisons as well.

I am just working with NanoPC-T4 in both circumstances

we'll see how it goes.

Fun analyzing such a different process.

Testing my ability to extend my understanding of Bash / Linux

June 12, 2020

I am running the latest Build "Kagu".

I have learned about Clean Levels. I am new to all of this.

So I was not cleaning anything. I wanted to build the kernel locally after config.

I noticed another thread about not seeing the menuconfig during the build

even though it was requested. After hand deleting the target linux image deb,

then menuconfig was invoked properly. I mention this to indicate that I dont

really have control over this "cleaning" yet but I am getting there.

I really dont want to clean too much but I have started over with a good cleaning.

To simplify things I want to focus on the Minimal Server without Debian packages.

I think there is a bug in main.sh line 344

[[ $BUILD_MINIMAL == yes ]] && EXTERNAL=no

I think if I have BUILD_MINIMAL then I can get no EXTERNAL_NEW

which I want. Otherwise I will get EXTERNAL_NEW since the options are

really local or remote but I want EXTERNAL_NEW=no

but you are setting EXTERNAL=no

a search shows this is an unused variable.

so I changed it to EXTERNAL_NEW=no

otherwise I suppose the config I can ignore the options and set EXTERNAL_NEW to "no" there.

All this takes some time. I could check that but I have started over so it will be awhile LOL.

I think I will be familiar with the process soon enough.

Thanks, for endurance

June 10, 2020

yeah I know. the reason is that I only really need ethernet/storage/type a and

actually Design Ware is fascinating. I have been learning RK3399 and their

The Technical Reference. I reviewed and indeed DesignWare comes from a company

named Synopsys. So that company probably coded the RK3399 controllers of interest:

Synopsys is a fascinating company. very large and they seem to have charted their

course well. I realize that TypeC was probably not even around for ubuntu 18.04 era.

I am also using USB as an exercise in kernel configuration -- since I can compile now.

USB and PCI are why we have RK3399. I wonder if PCIe is Synopsis design.

[I have no PCIe devices] we are safe!

I did learn how to config the USB subsystem. I assume that the DP problem

is going to be related to my second HDMI port problem. Since that is what I have.

or should HDMI work without actual FUSB302 usage. I doubt it.

in other words I do not have a DP monitor at the moment actually.

I have an Anker with HDMI and Type C Power.

I have read over the FUSB302 file. I leaned about the Software Interface (UCSI).

The Software Interface and Power Delivery seems to be what TypeC is about.

Most of FUSB appears focused on PD which makes sense since was Fairchild

a power company? I dunno. old name.

I suppose USB Platform Policy Management will be interesting developments.

I can see how all of this works together in a rich "managed" multimedia environment.

so I am learning how to work with the latest kernel on this topic.

Maybe I can find something useful. I did see a strange USB config issue.

this seems weird: why KOMEDA and no MALI?

#
# ARM devices
#
# CONFIG_DRM_HDLCD is not set
# CONFIG_DRM_MALI_DISPLAY is not set
CONFIG_DRM_KOMEDA=m
# end of ARM devices

I made some progress. I learned about /sys/kernel/debug/usb

I am learning the architecture of USB. I can unplug a USB3 type a hub

and see chatter on usb/u0 ... I am going to learn how to read that.

I can see the debug info for tcpm and fusb

but when I plug in my Anker 7-1 I should see some chatter

but I dont. That is just a "hub" with type c interface

I watched a few Synopsys videos on USB 4 and PCIe 5.

I am going to review T4 Tech Reference to see if I can understand

more of it...

Armbian Build 20.05 for NanoPC-T4 has some weirdness about DWC3.

In my Armbian Ubuntu 18 the dwc3.ko is being built

but now in Build 20.05 it is not being built.

. also reference to dwc3-rockchip.ko in 18 but

these actually dont exist in the kernel/drivers/usb folder but they

are listed as "builtin".

Armbian Build 20.05 definitely doesnt run a kernel config.

I see someone else is having this problem. I am going to run

menuconfig and see if I can get a new kernel compiled with

dwc3.ko being built.

only some "glue" module dwc3-etc.ko is being built.

June 10, 2020

Its an amazing time for ARM. OK why isnt Oracle building their own ARM chips?

hmmm I bet they are. anyway. There is a company called Nuvia building ARM neoverse

virtual systems. I think they will be bought out by Oracle before Google...ok sorry.

stick to the offpoint. Libvirt.JS is one interesting library. I have been waiting to explore

KVM and see new stuff going into mainline that are very ARM rich. So OpenStack

and kubernetes. Clearly Cockpit is going to manage that platform for IBM.

IBM could change. Look at Microsoft. They could turn Fedora into something real.

But I agree with you and will stick with Debian/Ubuntu for OpenStack guidance.

But Armbian makes Ubuntu ARM approachable for me. It is great stuff.

I love my little NanoPCs embedded in my desktop.

I could have my own neoverse board oneday.

Cockpit-Machines...Java Periphery. Well the Libvirt.JS could be

your UserLevel Interface for building virtual java clusters

with arbitrary IO capabilities in the cloud

June 10, 2020

Wow. Do you work for Oracle? I just watched a video of a 1024 Java cluster

running raspberrypi running Oracle Linux. I bet you know about that!

I am going massively off topic here and so I will take liberties and close

and mention it is great to meet such talents out here in Armbian land.

Does Oracle Linux ARM a realitiy? hmmm. very interesting. not really.

I love Debian and Ubuntu. Now IBM/RedHat interests me more and more

and that is a new direction I will not likely follow. But there is a RK3399

device and it runs Fedora. Uh Oh. Armbian needs to move on RK3399 Pro NOW!

anyway Oracle ARM....I happen to love MySQL and Workbench and I think

Oracle Java on ARM is something to ponder. A true advancement for Linux.

I am runing Ubuntu Gnome 3 and I say a big thank you to MIGUEL from bonoville.

This Armbian Ubuntu is the greatest desktop ever. ANd running Cockpit

I can manage Docker and Cockpit-Machines....stunning.

please to meet you and yes cloud/iot are many topics..

.OpenStack!? I am heading that way it seems

June 10, 2020

A coroutine is both an event and a thread?

Even C++ has concepts now. A concept is a unity of a duality.

if thread and events are dualities what is their unity?

indeed a coroutine...

June 9, 2020

thanks for being so insightful with that reference

and how does the topic of coroutines fit into events and threads?

now that is a tutorial I would pay money for LOL

I know Python 3.8 is now standard on ubuntu.

ah man. it is time to learn Promise / Futures world isnt it.

maybe a coroutine is both a thread and an event.

there it is transcendental bliss

will node/typescript/javascript/python all

have the same designs ...

June 9, 2020

OK. Yes I am going to read that. I would like to experience some clarity on that topic eventually.

hahha events and threads are duals. what a world. I am just trying to see into what is going on in platforms.

It seems Microsoft and Google have agreed to some turf. Microsoft is taking Chrome

and JavaScript into this universal platform world. so universal app platform based on

TypeScript/JavaScript/Node/Angular. This is what Cockpit is written in.

both are recent discoveries as I get back into this stuff because Linux 5.4 and ARM are getting

very interesting indeed. amazing even.

anyway by Events I sort of just mean I unplug my microSD card and Cockpit updates its storage display.

I assume this is according to gRPC node universal app event system or other.

and so I am reacting to new coronations and proclamations that I should be learning

microsoft VS code which is typescript / yabayaba

very important to keep seeking clarity on this thread / event / signal stuff.

wouldnt it be fun to understand it....LOL duals so they are opposites /

reciprical determinations of the Hegelian kind

June 9, 2020

I am learning the USB subsystem. I understand the SCSI subsystem and how USB interacts with that.

But this typec stuff is a whole nother level. It is extremely interesting and important, as far as I can tell.

I looked at the tcpm and the fusb302 code. I want to learn how to use usbmon and will be looking at logs

with this. I have an Anker 7 in 1 hub. I assume that is a proper TypeC cable. It does support Type C Power.

I am going to understand that. I have an Anker 5 in 1 hub for my second T4.

Mostly the storage and ethernet seem solid. On to deeper things.

I like having the second ethernet on my legacy t4...

anyway I see Google and Intel are the primary developer of this stuff.

so SCSI became "fabric space" and USB is dynamic access to the fabric?

I mean I would asssume so since this is a Google spec somewhat, OP1 or whatever.

I am learning Gadget. I see Design Ware studying the RK3399.

Who coded the RK3399 PCI and USB subsystems? Google?

I see Design Ware everywhere...anyway I am going to do what I can do

June 9, 2020

Thanks. I want to understand this USB system.

But thanks for your contributions. I personally dont really need type c functionality.

But it would be nice. It is a little too advanced for me but I will look at your work.

Could you give me a pointer to your contributions in a conventient manner.

8 hours ago, Oleksii said:

It is not only a matter of compilation, some important stiff is not yet there, so nothing to compile to get proper Type-C in 5.* kernels Don't look for black cat in the dark room, it will not help ....

June 9, 2020

OK. Zabbix has grown tremendously in just a couple years.

Yes I follow development platforms. But comeon Zabbix is gigantic platform.

It is fundamentally an outgrowth of SNMP HP OpenView architecture.

I did read a link while researching this topic (I am learning)

about replacements for SNMP hehehe...it's a current topic out there.

people refer to gRPC and gNMI....so I am not entirely off topic

But I am off topic so I apologize. Cockpit and Zabbix will probably

compete in the future. Best to your efforts.

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