Re: Question about usb sg handling
Oliver Neukum <[email protected]>
| Newsgroups | gmane.linux.usb.devel |
|---|---|
| Message-ID | <[email protected]> |
Am Dienstag, 19. Juni 2007 schrieb Pete Zaitcev: > On Tue, 19 Jun 2007 09:26:15 +0200, Oliver Neukum <[email protected]> wrote: > > > > The main problem is that the URB does not have an s/g list. If it > > > did, the whole library would be unnecessary. Nonetheless, we still > > > > And that from the man who complained about 24 more bytes in struct urb ;-) > > I think your irony falls flat. Why do you think I haven't submitted > a patch to add it yet? Of course there's always a tradeoff and linear > URBs served us well so far. I am merely stating the reason why the > library exists. But it hasn't. It can do a lot of things nobody needs and can't do things like scatter/gather that are needed. It allocates a lot of memory in every submission. It is too large because of unneeded features. It works, it doesn't work well. Regards Oliver ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ [email protected] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel