On Wed, Nov 24, 2010 at 10:10:29AM +0000, James Bottomley wrote: > The final question is is it worth it? Since USB devices are supposed to > be hot unpluggable, surely a USB device with a write back cache would be > a disaster: no-one will SYNC the cache on a surprise unplug anyway ... > therefore there shouldn't really be any of them surviving in the wild > (famous last words, I suppose). There's tons of USB devices with writeback caches. Recent windows version tend to use the FUA bit a lot because of this. And the linux usb storage target implementation thus has a hook to ignore the FUA bit, and it's probably not the only one.. -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
