On Mon, 29 Nov 2004, Xu Levis-Q16136 wrote:

> Alan,
> Sorry for my later reply mail. I'm busying for another usb client
> driver issue. Now i will be focus on this usb host transfer issue. And
> just like you mentioned i should send 3 urbs in prob function, do i need
> to build 3 urbs by using FILL_BULK_URB function?

Yes.  Or rather, that is how you should fill them after they have been 
created.

>  If yes, 3
> complete_callback_function will be create or not?

No, all of the URBs can use the same completion function.

>  If no, do you think i
> should build 3 urbs by using usb_alloc_urb function?

Yes, that is always how you should create URBs.

>  Could you give me
> some simple sample codes for operations? Thanks a lot!

I don't have any simple examples, sorry.

Alan Stern



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