Am Montag, 2. Juli 2007 schrieb Hans Petter Selasky:
> Hi Oliver!
>
> What you're trying to do is what the HPS USB stack for FreeBSD has been doing
> for a while. See for example:
>
> http://www.turbocat.net/~hselasky/isdn4bsd/sources/src/sys/dev/usb/ohci.c
>
> Look at the function:
>
> static usbd_status
> ohci_xfer_setup(struct usbd_device *udev,
> u_int8_t iface_index,
> struct usbd_xfer **pxfer,
> const struct usbd_config *setup_start,
> const struct usbd_config *setup_end)
>
> Maybe you want to take your approach one step further and allow allocation of
> multiple "URB" structures in the same go ?
This API looks too complicated for my taste.
This looks like sg support is native to BSD's version of an URB.
Regards
Oliver
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