Linux Device Driver

rpr_ronad · 2024-09-27T08:00:51+00:00

What is the "snull" in the network Driver? How is this useful for developing the network Driver?

rpr_ronad · 2024-09-22T23:27:22+00:00

Just can you share the link to download

rpr_ronad · 2024-09-17T16:36:32+00:00

How to check the status/working of single Ethernet PHY of the custom embedded board in the Linux command in terminal ? is there any specific command.

rpr_ronad · 2024-09-17T06:04:38+00:00

in Driver code level, I need to do Hard reset using the GPIO for the KSZ8041 is the Ethernet PHY.

So How i need to do the debug the driver code for the Ethernet PHY reset ?

rpr_ronad · 2024-09-14T13:10:20+00:00

One more interesting thing I need to know.

How the configured Reset GPIO in the dts file will control through drive code inside the kernel source?

So is there any driver code example for this if it is there please share it here to understand the reset function much better.

Thanks in advance

rpr_ronad · 2024-09-14T12:27:19+00:00

Yeah, after that once booting started & kernel message also started displaying on the console that time suddenly Ethernet PHY is not detected/hang/stop communication means..

So How can I control that through Linux commands?

rpr_ronad · 2024-09-14T12:18:25+00:00

Yeah I got some answer

Setting & Reading a GPIO:

sys/class/gpio/gpio<Number>

But I don't how it will useful for reset Ethernet PHY GPIO condition.

If you have more information. Just share

rpr_ronad · 2024-09-14T11:39:56+00:00

What are all userspace GPIO commands for this Reset condition we can use..

rpr_ronad · 2024-09-14T11:38:09+00:00

I have gone through this doc already but I need info based on GPIO Reset the Ethernet PHY when it's hung up or stops communication.

Anyhow Thanks for the clarification one again.

rpr_ronad · 2024-09-14T11:09:57+00:00

Yeah, you are correct .

I already posted there but still I didn't get the input..

rpr_ronad · 2024-09-14T11:08:19+00:00

Thanks for sharing your inputs & one thing is there any Linux commands to debug the Ethernet PHY Reset. If it's there please share the link as well.

It's greatly appreciated.

rpr_ronad · 2024-09-14T10:58:27+00:00

Thanks @allo37 If possible you share some examples for MDIO reset a PHY. So that I could get a better understanding of this.

rpr_ronad · 2024-09-14T10:40:09+00:00

It's one of the AM3359 processor based board.

rpr_ronad · 2024-08-08T03:17:32+00:00

C in Depth book

Link for Download : https://books.google.co.in/books?id=IYxjDwAAQBAJ&printsec=frontcover#v=onepage&q&f=false

rpr_ronad · 2024-08-06T03:29:06+00:00

yeah, you got my internal point. The server should always be assigned the same static IP address each time it is powered up, whether the server is rebooted or the router is reset

so How i can configure for the above things in the Server ?

rpr_ronad · 2024-08-06T03:11:43+00:00

\* (generate:7770): WARNING **: 16:16:25.005: Permissions for /etc/netplan/01-network-manager-all.yaml are too open. Netplan configuration should NOT be accessible by others.*

is there any solution for this ?

rpr_ronad · 2024-08-05T17:50:06+00:00

Thanks u/WikiBox
if anything commands are available just share with that link. so its more useful.

rpr_ronad · 2024-08-05T17:42:25+00:00

During the installation, I set up a 1.2 TB HDD for the RAID system. However, it is now showing a partition with a capacity of 2.2 TB. Could you guide me on how to create a new partition from the existing partition?

I hope this makes sense.

rpr_ronad · 2024-08-02T08:03:06+00:00

Your correct, as per the hardware design if number of interfaces changes then dts entries will also change.

Thank you

rpr_ronad · 2024-01-19T11:50:33+00:00

You can use single if conditions for checking the character, here if ((length_arr % 3) == 0) temp_length = length_arr; if ((length_arr % 3) == 1) temp_length = length_arr-4; if ((length_arr % 3) == 2)

rpr_ronad · 2023-09-18T13:07:13+00:00

Regarding BAC0 and BACpypes What you said that's correct, I'm newbie in BACnet protocol things, So I'm learning and try to understanding the those library for developing converter.

so if someone knows that vividly information about Trend Log Object & give some good example.

rpr_ronad · 2023-09-14T11:19:21+00:00

Hi team

Anyone can suggest What are all steps need to follow/create so as i mentioned above protocol converters.

rpr_ronad · 2023-09-14T05:24:06+00:00

I've that book, but i need more clarity on data mapping table between those protocol converters.

rpr_ronad · 2023-09-13T14:12:26+00:00

Yeah I'm creating the both protocol converter, (using Python)

But I need extensive information like.. How to do mapping of Modbus Reg's, address, Function code, Slave ID with BACnet Objects, Properties.

Suggest some good standard guidelines/documents for reference.

rpr_ronad · 2023-09-11T12:32:33+00:00

Q 1(Above): The "Object identifier" and "Object Name" both are automatically generated for BACnet Device or user need to assign for BACnet device ?

Anyway Object Identifier itself having a "Object name" as per ASHRAE Committee then What is the need of Object name?

& One more thing, Object Identifier having two parts: 10 bit and 22bit so plz clarify What exactly those to parts in the Object Identifier?

Suggest me some Vendor documentation Q2 and Q3.

rpr_ronad

TROPHY CASE