Re: [PATCH] USB: introduce urb->core_status field
Alan Stern <[email protected]>
| Newsgroups | gmane.linux.usb.devel |
|---|---|
| Message-ID | <[email protected]> |
On Fri, 8 Jun 2007, Greg KH wrote: > On Fri, Jun 08, 2007 at 05:12:05PM -0400, Alan Stern wrote: > > This patch (as926) replaces urb->status with urb->core_status, in an > > attempt to help prevent drivers from abusing the API by polling > > urb->status. The original field remains for use by drivers, but it > > isn't set until an URB is about to be handed to its completion > > routine. > > Hm, is there any way to keep this from being in the urb entirely? > Shouldn't this be an internal-to-the hcd type thing? Yes, it could be done that way, I think. It'll take more work than a simple search-and-replace. The trickiest part is how to unlink an URB after it has been submitted but before it has been handed to the HCD... > I say this as I worry people will just start using core_status instead > of status when we remove the status field. Maybe. It _is_ documented as being private to usbcore -- but that might not stop people! Alan Stern ------------------------------------------------------------------------- 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