On Tue, Jan 15, 2013 at 1:23 AM, Dan Williams <dcbw@xxxxxxxxxx> wrote: > On Fri, 2013-01-11 at 11:06 +0800, Ming Lei wrote: >> I am curious who are interested in the 'custom Restart indication' >> information after the interface is closed. > > It's actually before the interface is even opened. It's really just a > sync signal that's part of the driver's setup/initialization of the > device. OK, got it. Considered that it is only required by Sierra, could you submit the status URB in driver->bind and cancel it in driver->reset so we can avoid touching usbnet core code(one simple change might be to move init_status() before calling driver->info() inside usbnet_probe())? > >> If sierra_net provides ways(such as read registers) to query the >> indication event, you can just query the information and setup >> the device in driver_info->reset() during device open, so you can >> avoid submitting interrupt URB always. > > As far as I know, it does not, or at least Sierra hasn't released such > information about the firmware API of their devices. You are unlucky, :-) In fact, many usbnet devices provide read command to query this kind of information. 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
