Pi Software and Hardware issues, Linux

Pi Software and Hardware issues, Linux

Postby VK2ZIW » Wed Feb 24, 2016 8:42 pm

Hi all,
Banana Pi (original) Allwinner A20 based
======== Kernel 4.2.X USB bugs a show stopper =============

Fedora 22 and Centos 7

USB works BADLY.
My $9 Gigabyte K6150 keyboard works well but as soon as you plug in any other USB device,
every USB device stops.
My Gigabyte wireless keyboard and mouse combo doesn't work. Period.
A USB1 or USB2 hub is not 'seen'.

With kernel 3.x.x everything worked well!!

Alan VK2ZIW
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Re: Pi Software and Hardware issues, Linux

Postby VK2AVR » Thu Feb 25, 2016 8:29 am

So you're using a Banana Pi, not Raspberry Pi. The thread title is somewhat generic and "Pi" is assumed to mean "Raspberry Pi", which it's not. Sorry to nitpick.

Every time I think about buying one of the knockoffs I read a post like this that makes me think "yeahh.. maybe not".
Geoff
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Re: Pi Software and Hardware issues, Linux

Postby ZL2BKC » Sat Feb 27, 2016 5:29 am

Successful operation of USB requires a good reliable power source. Often there is insufficient power budget left for USB peripheral operation and wall adapter ratings are questionable. I recommend you try a good power adapter capable of 2A to see if that solves your issue. The apple iPad adapter is a good example of a trustworthy 2A adapter.

Wayne
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Re: Pi Software and Hardware issues, Linux

Postby VK2ZIW » Sat Feb 27, 2016 7:39 am

VK2AVR
When the "Raspberry Pi" family has a SATA interface, I will consider them. Period.

Yes, I have a Raspberry Pi, the 1st. with only 256Mb of RAM, sorry, useless.

My question to you is:
Have you tried an o/s with kernel 4.2 X with several USB devices ?

As a Repeater Controller, it needs USB audio dongles and serial adapters.
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Re: Pi Software and Hardware issues, Linux

Postby VK2CSW » Sat Feb 27, 2016 6:57 pm

ZL2BKC wrote:...The apple iPad adapter is a good example of a trustworthy 2A adapter.

Wayne


Until it electrocutes you :)

https://www.apple.com/au/support/ac-wallplug-adapter/
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Re: Pi Software and Hardware issues, Linux

Postby VK2AVR » Mon Feb 29, 2016 10:00 am

^^ I'd still trust an Apple power supply over a Chinese one any day.

http://www.righto.com/2014/05/a-look-in ... ricey.html


VK2ZIW wrote:When the "Raspberry Pi" family has a SATA interface, I will consider them. Period.


That's your choice and you're free to make it.

Yes, I have a Raspberry Pi, the 1st. with only 256Mb of RAM, sorry, useless.


Depends what you're trying to do with it. If you are trying to build something with strong SATA / Ethernet performance then you are better off with an x86 Mini-ITX motherboard. This isn't a deficiency of the Pi, it's simply that you're asking a $35 SBC to be something that it's not.

I have a Pi 2 at home and it is almost fast enough to consider using as a desktop replacement. Almost. Rendering websites is still too slow for my liking though. But for $35 it is *extremely* capable. Having said that, I see a lot of people trying to turn their Pi into a NAS. The Pi is not well suited to that task, you should use an x86 motherboard instead.

My question to you is:
Have you tried an o/s with kernel 4.2 X with several USB devices ?

As a Repeater Controller, it needs USB audio dongles and serial adapters.


I run a Pi 2 running Raspbian Jessie in my car, and it uses a 4.1 kernel. The USB is fully loaded with a wireless keyboard/trackpad, lightning connector for my phone (for charging and personal hotspot over USB), a Wifi dongle running in AP mode and a GPS. Everything works perfectly.
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Re: Pi Software and Hardware issues, Linux

Postby VK2ZIW » Tue Mar 01, 2016 9:07 am

Fixed
===== power ==== POWER ==== USB POWER ====

The Banana Pi has the capability to switch the power to the USB.
Problem is, their switch device looses too many volts.

So, I put a wire from my 5V in, direct to the USB socket pair, all fixed.

The Banana Pi is perfectly suitable for a NAS with ONE SATA disk.
Perhaps a 2nd disk on the 2nd USB port.

All good, Alan VK2ZIW
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