Messages in this thread | | | From | David Brownell <> | Subject | Re: [linux-usb-devel] Re: RFC: [2.6 patch] let BLK_DEV_UB depend on EMBEDDED | Date | Mon, 20 Dec 2004 08:03:44 -0800 |
| |
On Sunday 19 December 2004 11:06 pm, Pete Zaitcev wrote: > On Sun, 19 Dec 2004 22:43:05 -0800, David Brownell <david-b@pacbell.net> wrote: > > > It also seems to mean significantly slower access (at high speed) > > for the most standard devices. That doesn't seem like a win, > > though I suspect fixing it should be as simple as switching over > > to use the USB scatterlist calls (which usb-storage uses) ... > > They do not allow asynchronous operation, last time I checked.
You could add an async mode ... heck, even the hack of dedicating a kernel thread to that task ("psuedo-async" within "ub") would give much more reasonable throughput.
- Dave - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |