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One needs to calculate the USB bandwidth etc. It all gets difficult as the device making use of the isoc transfer may be at any point on the device tree. Setting up the isoc transfer pipe might differ on those two and the driver code might be different as well.įor isoc transfer there needs to be a scheduler that makes sure no isoc transfers are dropped (in or out) and that they happen at the right time. One is just the normal isoc transfer and the other is realtime implementation of isoc transfer. There seems to be 2 types of isoc transfers that can be used by Poseidon. IsoChronous code is already in place in poseidon.library BUT transfers are not queued to be later rerouted in the host driver code (needs to be written for each host OCHI UCHI EHCI etc). Isochronous - USBAudio, Webcams, etc (wip).USB transfers can be of the type control, isochronous, interrupt, or bulk. Please let us know any mistakes or any information to be added, use Prefs/Trident to confirm Vendor and Product IDs ![]() Host Adapter USB1 OHCI UHCI USB2 EHCI USB3.0 USB3.1 xHCI USB4 thunderbolt 13 ethwrap.class - Host Data Link "Cable Bridge" for data transfer.12.3 UVC.class - USB Device Class Definition for Video Devices or USB Video Class.12.2 Game Video TV Capture - Non UVC compliant.7 hub.class (self-powered and external ac powered hubs).6 rawwrap.class - some scanners supported.5 printer.class - PostScript 3 and internal ghostscript drivers.4 ptp.class (PTP and MTP - other cameras and mp3 players).3 massstorage.class (MSC/UMS - most cameras and mp3 players). ![]()
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