LPSS | 落魄书生流控源码备份 - wget https : //github | Script Programming library

by mu228 Shell Version: Current License: No License

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kandi X-RAY | LPSS Summary

LPSS is a Shell library typically used in Programming Style, Script Programming applications. LPSS has no bugs, it has no vulnerabilities and it has low support. You can download it from GitHub.

wget && bash LPSS.sh.

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Support

LPSS has a low active ecosystem.

It has 10 star(s) with 16 fork(s). There are 3 watchers for this library.

It had no major release in the last 6 months.

LPSS has no issues reported. There are no pull requests.

It has a neutral sentiment in the developer community.

The latest version of LPSS is current.

Quality

LPSS has no bugs reported.

Security

LPSS has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

License

LPSS does not have a standard license declared.

Check the repository for any license declaration and review the terms closely.

Without a license, all rights are reserved, and you cannot use the library in your applications.

Reuse

LPSS releases are not available. You will need to build from source code and install.

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LPSS Key Features

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LPSS Examples and Code Snippets

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Community Discussions

Trending Discussions on LPSS

SPIDEV Linux Driver on Intel Atom E3900 Series

QUESTION

SPIDEV Linux Driver on Intel Atom E3900 Series

Asked 2019-Dec-11 at 18:12

I am attempting to expose the SPI #2 interface from the Intel E3900 series (specifically the E3940) as a spidev interface to CentOS8 (kernel version 4.18). As a fallback, any method to access the SPI controller through a C/C++ API would be acceptable.

I am trying to determine if the issue is something that must be corrected by the BIOS vendor or something I can fix with an ACPI patch. The vendor (Congatec) has claimed that the SPI interface is currently not supported as a userspace entity, but I am still waiting for my issue to be escalated to their engineering group to confirm that. The vendor also stated that the BIOS setting for the SPIs should be left at "Disabled", but I have also tried the "PCI" and "ACPI" options with no change.

I have attempted to merge together snippets from several references to create an ACPI patch, including:

spidev Linux driver on Intel Atom board

https://www.kernel.org/doc/Documentation/acpi/initrd_table_override.txt

https://www.kernel.org/doc/html/latest/firmware-guide/acpi/enumeration.html

I have recompiled the CentOS8 kernel to include all the necessary options, and I am able to successfully rebuild the Linux initrd (initramfs in CentOS8). I confirmed through dmesg logs that my modification is being loaded at boot; I don't see any error messages in the logs, so I am assuming that it is being applied successfully.

For reference, here are the kernel options I have ensured are compiled in (=y). I plan to eventually use kernel modules in concert with the stock kernel, but for now I thought this was the easier path.

...

ANSWER

Answered 2019-Dec-11 at 18:12

Thankyou to 0andriy! He got me past the roadblock and taught me a few new commands along the way. The root cause of my issue was two-fold as it turned out:

1) The board vendor had cautioned me against enabling SPI#1 in BIOS, as that bus is used to control items on the SOM itself (assuming via their Linux BSP/driver?). I had to enable all three SPI interfaces in ACPI mode to have them be loaded and show up in the lspci -nk -s 19 output.

2) The device-tree update file had an error, which I missed previously because the interface itself was not being loaded. The AML file needed to specify Chip-Select 1, not 2.

The script below will make all of the initrd changes and expose all three SPI buses using SPIDEV. On the board I am testing with, the eSPI bus is coming through as spidev1.

I still need to confirm the maximum speed the e3900 can handle, but I think the other parameters are set correctly.

Source https://stackoverflow.com/questions/58883754

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install LPSS

You can download it from GitHub.

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For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

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