USB MIDI class-device oddities with more than 16 ports
Hi,
just playing around with programming an USB device stack for the AT91SAM7 MCUs. Because i do a lot in music electronics, i tried to implement a MIDI device (Audio/MIDISTREAMING) according to the specs:
http://www.usb.org/developers/devclass_docs/midi10.pdf
And, just for fun, i wanted to try if it works if i use 2 output endpoints to get (theoretically) 32 physical MIDI OUT connectors. According to the specs, this should be possible (page 9):
"The USB-MIDI Converter typically contains one or more MIDI IN and/or MIDI OUT endpoints."
"Each MIDI Endpoint in a USB-MIDI converter can be connected to up to 16 Embedded MIDI Jacks."
So. I can use "more" IN and/or OUT endpoints. I did so. I have 1 IN endpoint, 2 OUT endpoints. And on each endpoint, i have 16 embedded jacks connected to the external jacks (which in fact are currently just simulated
Now what is the reason why i write this?
On reception of data, everything works fine so far, but i didn't check with more than 1 endpoint so far. On transmission, i can address the first 16 jacks on the first endpoint without any problems, but the other 16 jacks (which are on the second endpoint) are routed to the first endpoint by OSX.
I can see this in the display i have on the MCU, and i also can see that everything goes to the other endpoint if i just exchange the endpoint numbers in the configuration descriptors. So i think my code on the MCU does the right things, but OSX doesn't seem to be able to handle more than one output endpoint.
This also might apply to the input endpoints, i don't know.
Did anyone observe similar problems? I don't talk about such things like those Emagic interfaces, they are not implemented according to the standard class device specs, they have some more features and need a proprietary implementation.
Not that this would be too important, but i think it might be a bug worth fixing.
...Michael
Either i'm asking in the wrong forum or you are posting on the wrong threads
I will virtualize the situation for you, the rest please stay with the initial post, as meanwhile, all the important details are lost.
Yes, this is a box with 32 MIDI-Out connectors and 16 MIDI-In connectors besides the USB connector. I can see this interface with exactly this configuration in Audio-MIDI-Setup (now this is real, not virtual , and if i configure any software to output on Port 1-16 (not channel!), the signal appears on Port 1-16, but when i configure Port 25, it appears on Port 9. So Instead of Ports 17-32, OSX sends the data to Ports 1-16 again.
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Does this mean that BPEL does not handle document/literal style endpoints with more than one port (operation)?
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<?xml version="1.0" encoding="UTF-8" ?>
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<wsdl:message name="retrieveChResponse">
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<wsdl:binding name="TestServiceSoapBinding" type="impl:TestService">
<wsdlsoap:binding style="document" transport="http://schemas.xmlsoap.org/soap/http" />
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<wsdlsoap:operation soapAction="" />
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</wsdl:definitions>Hi Dragana,
We definitely support the ability to call a web service that exposes two operations (document/literal or not).
Glancing through your WSDL, it looks good.
Could you please try to tunnel the second request and see 1) what data is sent to the service and 2) what data is returned by the service?
Can you please email us a reproduceable case so that we can help troubleshoot in parallel?
Thank you,
Edwin
[email protected]
please rename .zip to .zap -
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RickTeslasBB wrote:
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Slider with more than one thumb
Hi,
does anybody know a slider with more than one thumb?
The JSlider-class only provides one thumb, but I need more thumbs to displace.
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Thank you all
KatharinaHi,
I also tried MThumbSlider, a.k.a. CMThumbSlider (C for
Cougaar?), the slider with more knobs. (keywords: slider,
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I downloaded the code from the link mentioned below,
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UIDefaults.getUI() failed: no ComponentUI class for:...
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public static void setUIName(JComponent c) {
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StringBuffer sb = new StringBuffer();
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I changed the substring with the package name, including
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There is another thread on this subject:
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I need to record 16 tracks, I have two different audio iterface, in GarageBand i can only find one of them, if i go to prefrenses-audio, I can set any of them as my audio interface, but only one at the time.
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can i record with more than one audio interface
yes, create an aggregate device:
http://www.bulletsandbones.com/GB/Tutorials.html#allaboutaggregatedevices
(Let the page FULLY load. The link to your answer is at the top of your screen)
josteinfromoslo wrote:
I need to record 16 tracks
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Hi,
Please let me know what formatting type has to be used to have spool output with more than 255 lines.
X_24_80_JP L ANY 00024 00080 ABAP list HR Japan: At least 24 rows by 80 columns
X_44_120 L ANY 00044 00120 ABAP/4 list: At least 44 rows by 120 columns
X_51_140_JP L ANY 00051 00140 ABAP list HR Japan: At least 51 rows by 140 columns
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X_65_132 L ANY 00065 00132 ABAP list: At least 65 rows by 132 columns
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X_65_512/2 L ANY 00065 00512 ABAP List: At least 65 Lines 2*256=512 Columns 2-sided (Only for SAPlpd)
X_65_80 L ANY 00065 00080 ABAP/4 list: At least 65 rows by 80 columns
X_65_80-2 L ANY 00065 00080 ABAP List: 2-column 65 characters 80 columns (only for SAPLPD from 4.15)
X_65_80-4 L ANY 00065 00080 ABAP List: 4-column 65 characters 80 columns (only for SAPLPD from 4.15)
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X_TELEX L TELEX 00001 00001 Telex: 69 characters wide, only as many lines as supported by TTU
ZABC_SAP L ANY 00065 00550 LCM Report Page Type
I have created a custom Format Type with 65*550 (ZABC_SAP) , but still the output gets truncated in the spool.
In sp01 . For the spool request ... If it displayed in Graphical layoout ... Output is getting truncated but when we see in Raw format .. i can see the entire output. But it is not at all formatted.
Thanks,
Tanuj
Message was edited by:
Tanuj Kumar BolisettyHello Tanuj,
You need to use a page format greater than 255 columns for sure. However still if it does not solve the issue then you may consider using the note 186603.
PS: I guess you are on a higher release than 4.6 C . For this release this note íIt has a text attachment for a report tat allows to display such spool requests.
Regards.
Ruchit.
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