* [alsa-devel] MIDI 2.0 universal packet protocol [not found] <1578973876973015070-webhooks-bot@alsa-project.org> @ 2020-01-14 3:51 ` GitHub issues - edited 0 siblings, 0 replies; 3+ messages in thread From: GitHub issues - edited @ 2020-01-14 3:51 UTC (permalink / raw) To: alsa-devel alsa-project/alsa-lib issue #24 was edited from symdeb: Since MIDI 2.0 only support USB and not over DIN (for now), will MIDI 2.0 need a new or updated OS class driver for the 32/64 bit universal packet interface and device descriptor for devices ? Page 16 of the USB MIDI class driver spec defines support for 1,2 or 3 bytes transfers only, How will this have to be implemented by MIDI USB device manufacturers and well as on the Linux OSes side ? How will this impact Linux ALSA ? Would the first byte of the message with b7=0 not confuse the driver of running status ? Link universal packet format https://www.midi.org/articles-old/details-about-midi-2-0-midi-ci-profiles-and-property-exchange) Link first MIDI 2.0 Ready product: Roland A-88MKII https://www.midi.org/articles-old/roland-announces Issue URL : https://github.com/alsa-project/alsa-lib/issues/24 Repository URL: https://github.com/alsa-project/alsa-lib _______________________________________________ Alsa-devel mailing list Alsa-devel@alsa-project.org https://mailman.alsa-project.org/mailman/listinfo/alsa-devel ^ permalink raw reply [flat|nested] 3+ messages in thread
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* [alsa-devel] MIDI 2.0 universal packet protocol [not found] <1578973497459815979-webhooks-bot@alsa-project.org> @ 2020-01-14 3:45 ` GitHub issues - edited 0 siblings, 0 replies; 3+ messages in thread From: GitHub issues - edited @ 2020-01-14 3:45 UTC (permalink / raw) To: alsa-devel alsa-project/alsa-lib issue #24 was edited from symdeb: Since MIDI 2.0 only support USB and not over DIN (for now), will MIDI 2.0 need a new or updated OS class driver for the 32/64 bit universal packet interface and device descriptor for devices ? Page 16 of the USB MIDI class driver spec defines support for 1,2 or 3 bytes transfers only, How will this have to be implemented by MIDI USB device manufacturers and well as on the Linux OSes side ? How will this impact Linux ALSA ? Would the first byte of the message with b7=0 not confuse the driver of running status ? Reference for packet format : [https://www.midi.org/articles-old/details-about-midi-2-0-midi-ci-profiles-and-property-exchange](url) Issue URL : https://github.com/alsa-project/alsa-lib/issues/24 Repository URL: https://github.com/alsa-project/alsa-lib _______________________________________________ Alsa-devel mailing list Alsa-devel@alsa-project.org https://mailman.alsa-project.org/mailman/listinfo/alsa-devel ^ permalink raw reply [flat|nested] 3+ messages in thread
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* [alsa-devel] MIDI 2.0 universal packet protocol [not found] <1578970828615752935-webhooks-bot@alsa-project.org> @ 2020-01-14 3:00 ` GitHub issues - opened 0 siblings, 0 replies; 3+ messages in thread From: GitHub issues - opened @ 2020-01-14 3:00 UTC (permalink / raw) To: alsa-devel alsa-project/alsa-lib issue #24 was opened from symdeb: Since MIDI 2.0 only support USB and non MIDI DIN (for now), will MIDI 2.0 need a new or updated OS class driver for the 32/64 bit universal packet interface and device descriptor for devices ? Page 16 of the USB MIDI class driver spec defines support for 1,2 or 3 bytes transfers only, How will this have to be implemented by MIDI USB device manufacturers and well as on the Linux OSes side ? How will this impact Linux ALSA ? Would the first byte of the message with b7=0 not confuse the driver of running status ? Reference for packet format : [https://www.midi.org/articles-old/details-about-midi-2-0-midi-ci-profiles-and-property-exchange](url) Issue URL : https://github.com/alsa-project/alsa-lib/issues/24 Repository URL: https://github.com/alsa-project/alsa-lib _______________________________________________ Alsa-devel mailing list Alsa-devel@alsa-project.org https://mailman.alsa-project.org/mailman/listinfo/alsa-devel ^ permalink raw reply [flat|nested] 3+ messages in thread
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