Ticket #118 (closed enhancement: invalid)

Opened 21 months ago

Last modified 21 months ago

isochronous transfer problem

Reported by: haoxianglong Owned by:
Milestone: Component: libusb-1.0
Keywords: Cc:
Blocked By: Blocks:

Description

hi, I am now using libusb-1.0.8 to transfer voice data on the isochronous channel. The data is transferred but I become a notification in about 12ms. I think it should be much shorter than 12ms.
I have also found an interesting effect by sending a iso packet and then a bulk packet. But I see in the usb sniffer that the bulk packet is first transmitted and then the iso packet. I think the priority of iso transfer should be higher than the priority of bulk transfer.

Change History

comment:1 Changed 21 months ago by stuge

  • Resolution set to invalid
  • Status changed from new to closed

For support questions please use the mailing list rather than the bug tracker.

Please send a small code example to the mailing list with which you can reproduce transfers occuring out of order. Please also include usbmon output for one run of the program.

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