On Tue, Jun 25, 2013 at 12:26 AM, Alan Stern <stern@xxxxxxxxxxxxxxxxxxx> wrote: > > Other than usbtest, the only driver using SG that I know of is > usb-storage, and it does make that assumption. It works because the Another example is usbfs driver, which sets the SG size as 16KB and also makes the assumption. > block layer packages the I/O up into groups of pages and the bulk > maxpacket values always divide 4096 (or whatever the page size happens > to be) -- except for wireless USB. Thanks, -- Ming Lei -- 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
