> > FunctionFS is very specific, because read/write operations are directly > translated into USB requests, which are asynchronous, so you cannot use > O_NONBLOCK. > > If you need non-blocking API you can use Asynchronous I/O (AIO). You can > find some examples in kernel sources (tools/usb/ffs-aio-example/). > > Br, > Robert Baldyga > Thank you, that sounds like the best approach. In this case I think perhaps the long wait without any data is an problem with the imx6 Chipidea USB controller. I guess it should suspend and drop the connections if there is no traffic for more than 10ms? Thanks. Jim Baxter -- 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
