Re: Streaming on USB 2.0 bulk camera device

Tech-Archive recommends: Fix windows errors by optimizing your registry

Yes, 1394 is a better choice. For short term solution, it is not a viable
option for me. Due to hardware limitation, I can only use one IN data
endpoint. Is there anyone that can tell me how I can queue multiple IRPs to
lower driver for bulk transfer so as not to intermit data stream from camera
onto USB bus. Thanks.

Victor

"r_konjeti@xxxxxxxxxxxx" wrote:

> I am not expert in USB, but I have an idea for your bulk. Is it not
> possbile to send one Irp per bulk end point. If so, why not have two
> bulk endpoints and alternately transfer data on two bulk OUT endpoints
> from camera.
>
> As Maxim suggested 1394 is best approach if you are thinking on future
> expansion also. 1394b can provide 800Mbps, but Microsoft drivers
> support only upto 1394a speeds. This will be big project with big
> change if you want to write your own Windows 1394 driver.
>
>
.

Relevant Pages

  • Re: Streaming on USB 2.0 bulk camera device
    ... lower driver for bulk transfer so as not to intermit data stream from camera ... possbile to send one Irp per bulk end point. ... bulk endpoints and alternately transfer data on two bulk OUT endpoints ... change if you want to write your own Windows 1394 driver. ...
    (microsoft.public.development.device.drivers)
  • Re: HID Multitouch Digitiazer driver samples
    ... Set a breakpoint in your driver entry and AddDevice. ... I'm don't use bulk, because, somehow, the results are not so pleasing, maybe ... Suppose that I want to use USB isoc transfers, ... How is isoch traffic implemented on a serial communication? ...
    (microsoft.public.development.device.drivers)
  • Re: WinCe USB on Serial class problem
    ... i write a usb driver with serial class, ... there are too many bulk out nack between two bulk out ack ... used but i found is had limitation with wince usb host serial ... driver, only 64 byte in bulk out transfer,and how can i do to ...
    (microsoft.public.windowsce.platbuilder)
  • Re: Problem with ISOUSB
    ... I modified BULKUSB and ISOUSB driver samples provided by windows ddk to ... develop a driverwhich handles both Bulk and Iso transfers, ... URB, each entry in the iso packet array corresponds to exactly one ...
    (microsoft.public.development.device.drivers)
  • Re: Solaris USB driver for Linksys USB Ethernet controller (USB200M)
    ... >- in GLD you do not get a read request, you are supposed to furnish GLD with ... So the driver places async bulk read request, ... I've never written an ethernet driver... ... I think I've seen more then 64bytes for bulk read with my ...
    (comp.unix.solaris)