Hi Felip,
I am not sure what was the original intention to use sg. But I wanted to
use this to resolve one of the issue with my application related to isoc
endpoint. So, you can correct me , if I am not in-lined with uses
philosophy.
I have a scenario, where I have scattered data to be transferred over
isoc IN endpoint in one service interval.
So, I wanted to use sg feature for this. I will consider that one sg has
data for only one service interval. I mean, if I have 5 scattered
buffer, then I will submit one ep_queue with req->num_sgs = 5.
There will not be a scenario, where one SG might contain data for more
than one service interval, right?
If my understanding is correct, then I might need to modify dwc3 driver
a bit. only first TRB of the service interval should have TRBCTL as
ISOC_FIRST rest should have TRBCTL as ISOC.
Regards
Pratyush
--
To unsubscribe from this list: send the line "unsubscribe linux-usb" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
