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Elecraft Mac People: KUSB Issue

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David Ahrendts

Elecraft Mac People: KUSB Issue

What can ya do to keep your fabulous Mac OS X device (in my case a Mac Mini) from kicking off the KUSB when it goes to sleep? Trying to keep MacLogger connected to the K3S via it’s KUSB for several days at a time (like Labor Day weekend). It appears to get kicked off for inactivity as a power drain which requires (I know, poor me!) re-starting the Mac Mini to re-initialize the USB port with the KUSB. Not a big thing, but maybe there is a way to refresh the USB devices connected (a Mac issue). Anyone?

David Ahrendts [hidden email]

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David Ahrendts

Re: Elecraft Mac People: KUSB Issue

Many thanks for the half-dozen direct responses off list. Most of you run a powered USB hub for the KUSB (or several). May I ask what type/brand powered hub are you successfully using with your Mac device for the KUSB or multiple KUSBs?

It appears the chip in the KUSB can be interpreted as a real power hog, and the Mac Mini, MacBook Pro, iMac will protect against unusual drain. It just shuts off the USB port after a little warning. A powered hub would certainly remove that load from the Mac.
I will also admit to being one of the million or so Mac beta testers and we’re currently on OS X El Capitan beta Version 10.11 (15A278b). And believe me, there have been/are plentiful Mac sleep-wake issues before they finalize.

David A., KC0XT, LA

> On Sep 7, 2015, at 2:39 PM, David Ahrendts <[hidden email]> wrote:
>
> What can ya do to keep your fabulous Mac OS X device (in my case a Mac Mini) from kicking off the KUSB when it goes to sleep? Trying to keep MacLogger connected to the K3S via it’s KUSB for several days at a time (like Labor Day weekend). It appears to get kicked off for inactivity as a power drain which requires (I know, poor me!) re-starting the Mac Mini to re-initialize the USB port with the KUSB. Not a big thing, but maybe there is a way to refresh the USB devices connected (a Mac issue). Anyone?
>
>
> David Ahrendts [hidden email] <mailto:[hidden email]>
>
>
>
>

David Ahrendts [hidden email]

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Joel Black-2

Re: Elecraft Mac People: KUSB Issue

I have turned off computer sleep on my Late 2012 iMac. It is set to “Never.” I do have my screen set to go to sleep. I have an add-on called Caffeine which, when selecting with my mouse, will allow me to either keep the display on or allow it to go to sleep. It’s my understanding that OS X runs its utilities during the wee morning hours and I don’t want to interfere with that (I could be wrong).

As for a powered USB-3 hub the HooToo hub works great: http://www.amazon.com/gp/product/B00FR795WA?psc=1&redirect=true&ref_=oh_aui_detailpage_o04_s01 <http://www.amazon.com/gp/product/B00FR795WA?psc=1&redirect=true&ref_=oh_aui_detailpage_o04_s01>

I do *not* try and run my external sound card through it.

73,
Joel - W4JBB

> On Sep 7, 2015, at 5:40 PM, David Ahrendts <[hidden email]> wrote:
>
> Many thanks for the half-dozen direct responses off list. Most of you run a powered USB hub for the KUSB (or several). May I ask what type/brand powered hub are you successfully using with your Mac device for the KUSB or multiple KUSBs?
>
> It appears the chip in the KUSB can be interpreted as a real power hog, and the Mac Mini, MacBook Pro, iMac will protect against unusual drain. It just shuts off the USB port after a little warning. A powered hub would certainly remove that load from the Mac.
> I will also admit to being one of the million or so Mac beta testers and we’re currently on OS X El Capitan beta Version 10.11 (15A278b). And believe me, there have been/are plentiful Mac sleep-wake issues before they finalize.
>
> David A., KC0XT, LA
>
>
>> On Sep 7, 2015, at 2:39 PM, David Ahrendts <[hidden email]> wrote:
>>
>> What can ya do to keep your fabulous Mac OS X device (in my case a Mac Mini) from kicking off the KUSB when it goes to sleep? Trying to keep MacLogger connected to the K3S via it’s KUSB for several days at a time (like Labor Day weekend). It appears to get kicked off for inactivity as a power drain which requires (I know, poor me!) re-starting the Mac Mini to re-initialize the USB port with the KUSB. Not a big thing, but maybe there is a way to refresh the USB devices connected (a Mac issue). Anyone?
>>
>>
>> David Ahrendts [hidden email] <mailto:[hidden email]>
>>
>>
>>
>>
>
>
>
>
> David Ahrendts [hidden email]
>
>
>
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
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> Post: mailto:[hidden email]
>
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Jack Brindle-2

Re: Elecraft Mac People: KUSB Issue

In reply to this post by David Ahrendts

Current requirements for the USB-Serial adapter can be seen by running a system report (About This Mac, then click on then System Report button). Then, select the USB entry under Hardware. If you have a lot of devices, figuring out which it is could be a challenge, but it will most likely be one of the FTDI interfaces. My KUSB shows a current requirement of 90 mA.

The Mac will try to put all devices on the USB to sleep when it goes to sleep, whether they are connected to a hub or not. When the Mac is awakened, it will try to reinitialize the ports as they were before the sleep condition, but if it is not doing this, then the software program should catch the wakeup notification and re-initialize the port. If it does not, you should file a bug report with the software package’s author to let them know they have something to fix. MacLogger DX is pretty good; it would surprise me if this isn’t already being done, but dropping an email to them is still a good idea.

Note that the USB stack is being reworked for El Capitan, so until the final release, you may see major changes in the way things work. Things have become much better since the first developer release, but there are still tweaks occurring with each subsequent release as problems are uncovered.

Jack Brindle, W6FB

> On Sep 7, 2015, at 3:40 PM, David Ahrendts <[hidden email]> wrote:
>
> Many thanks for the half-dozen direct responses off list. Most of you run a powered USB hub for the KUSB (or several). May I ask what type/brand powered hub are you successfully using with your Mac device for the KUSB or multiple KUSBs?
>
> It appears the chip in the KUSB can be interpreted as a real power hog, and the Mac Mini, MacBook Pro, iMac will protect against unusual drain. It just shuts off the USB port after a little warning. A powered hub would certainly remove that load from the Mac.
> I will also admit to being one of the million or so Mac beta testers and we’re currently on OS X El Capitan beta Version 10.11 (15A278b). And believe me, there have been/are plentiful Mac sleep-wake issues before they finalize.
>
> David A., KC0XT, LA
>
>
>> On Sep 7, 2015, at 2:39 PM, David Ahrendts <[hidden email]> wrote:
>>
>> What can ya do to keep your fabulous Mac OS X device (in my case a Mac Mini) from kicking off the KUSB when it goes to sleep? Trying to keep MacLogger connected to the K3S via it’s KUSB for several days at a time (like Labor Day weekend). It appears to get kicked off for inactivity as a power drain which requires (I know, poor me!) re-starting the Mac Mini to re-initialize the USB port with the KUSB. Not a big thing, but maybe there is a way to refresh the USB devices connected (a Mac issue). Anyone?
>>
>>
>> David Ahrendts [hidden email] <mailto:[hidden email]>
>>
>>
>>
>>
>
>
>
>
> David Ahrendts [hidden email]
>
>
>
>
> ______________________________________________________________
> Elecraft mailing list
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> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
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Scott Manthe-2

Re: Elecraft Mac People: KUSB Issue

In reply to this post by David Ahrendts

Hi David,
Have you tried right-clicking on the MacLogger DX app icon and checking
the "Prevent App Nap" box in he info window? This will prevent the Mini
from going into sleep mode when you're running MacLogger.

73,
Scott N9AA

On 9/7/15 5:39 PM, David Ahrendts wrote:

> What can ya do to keep your fabulous Mac OS X device (in my case a Mac Mini) from kicking off the KUSB when it goes to sleep? Trying to keep MacLogger connected to the K3S via it’s KUSB for several days at a time (like Labor Day weekend). It appears to get kicked off for inactivity as a power drain which requires (I know, poor me!) re-starting the Mac Mini to re-initialize the USB port with the KUSB. Not a big thing, but maybe there is a way to refresh the USB devices connected (a Mac issue). Anyone?
>
>
> David Ahrendts [hidden email]
>
>
>
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
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David Ahrendts

Re: Elecraft Mac People: KUSB Issue

Scott, that would appear to be the solution. Thanks, everyone, for your input and comments. Best wishes.

David A., KC0XT, LA

> On Sep 8, 2015, at 5:30 AM, Scott Manthe <[hidden email]> wrote:
>
> Hi David,
> Have you tried right-clicking on the MacLogger DX app icon and checking the "Prevent App Nap" box in he info window? This will prevent the Mini from going into sleep mode when you're running MacLogger.
>
> 73,
> Scott N9AA
>
>
> On 9/7/15 5:39 PM, David Ahrendts wrote:
>> What can ya do to keep your fabulous Mac OS X device (in my case a Mac Mini) from kicking off the KUSB when it goes to sleep? Trying to keep MacLogger connected to the K3S via it’s KUSB for several days at a time (like Labor Day weekend). It appears to get kicked off for inactivity as a power drain which requires (I know, poor me!) re-starting the Mac Mini to re-initialize the USB port with the KUSB. Not a big thing, but maybe there is a way to refresh the USB devices connected (a Mac issue). Anyone?
>>
>>
>> David Ahrendts [hidden email]
>>
>>
>>
>>
>> ______________________________________________________________
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:[hidden email]
>>
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>> Message delivered to [hidden email]
>
> ______________________________________________________________
> Elecraft mailing list
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> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
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Scott Manthe-2

Re: Elecraft Mac People: KUSB Issue

In reply to this post by Joel Black-2

The "App Nap" feature is separate from your sleep settings. It puts
individual applications to sleep regardless of your system settings.
Apparently, in Yosemite and El Capitan (a name so dumb I'll never
upgrade), Apple has removed the ability to control this easily from from
the user.

73,
Scott N9AA

On 9/8/15 10:20 AM, Walter Underwood wrote:
> I generally have “Never” set for going to sleep on my work MacBook. I log onto other servers and run scripts that might take an hour or so. The Mac really is doing nothing during that time, but it needs to stay awake to keep the connection up.
>
> wunder
> K6WRU
> CM87wj
> http://observer.wunderwood.org/ (my blog)
>
>

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