So, my boss asks me today, "why can't we send a usb message out every
single millisecond?" in response to my statement that there is an
approximately 4 millisecond delay between a message being sent and
getting a reply from the device. The current driver we're using utilizes
the newest version of urb chaining in isochronous mode. If I were to go
about trying to explain to him why this delay is present in the system,
what would I say? I assume that it takes 2 ms to load and send to the
device and another 2 ms for the device to load and send data back to me.
Am I correct? Why is there a 2 ms delay? Is the 1st millisecond a
"preparation" phase? 

Thank you for any help granted,

Anton 



-------------------------------------------------------
This SF.net email is sponsored by OSDN developer relations
Here's your chance to show off your extensive product knowledge
We want to know what you know. Tell us and you have a chance to win $100
http://www.zoomerang.com/survey.zgi?HRPT1X3RYQNC5V4MLNSV3E54
_______________________________________________
[EMAIL PROTECTED]
To unsubscribe, use the last form field at:
https://lists.sourceforge.net/lists/listinfo/linux-usb-devel

Reply via email to