On Wed, 2008-02-06 at 17:18 -0500, Alan Stern wrote: > On Wed, 6 Feb 2008, Matthew Dharm wrote: > > > Maybe this is a crazy question, but... > > > > Why is this not in the SCSI core? > > Or even in the block core? > > > It's hardly USB-specific, and I'm > > willing to bet that there are other HCDs (at least spb2) which need to do > > this sort of thing... > > James, do you have any idea? > > What we're talking about is a routine that provides drivers a simple > way to access the data in a scatter-gather buffer (which may lie in > highmem or otherwise not be easily reachable). The idea is that some > commands are emulated by the driver rather than carried out by the > device, and the driver needs some way to stick the results in the > transfer buffer. Isn't that what scsi_kmap_sg() is designed for ... or do you need something slightly different? James - To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
