On Tue, Jul 27, 2010 at 08:48:05PM +0800, Cory Xie wrote: > Hi, > > In OTG 2.0, 6.2.3 GetStatus commands: > > [ > A host is required to use the GetStatus command (Table 6-3), with > wIndex set to the OTG status selector (Table 6-4) to request the Host > request flag (Table 6-5) from the peripheral (see Section 6.3). If the > B-device is not HNP capable, it shall return a STALL if it receives a > GetStatus command for the OTG feature selector. > ] > > It looks as if this is a standard USB 2.0 GetStatus() request with the > wIndex set to the "OTG status selector" (0xF000). But there is a > difference with the wLength, the USB 2.0 standard GetStatus() > specifies wLength as 2, but the GetStatus(OTG status) specifies as 1. > Is this kind of abnormal? Why it can't just use the same wLength ? Why not ask the USB-IF about this? thanks, greg k-h -- 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
