michel

> -int API_EXPORTED libusb_set_option(libusb_context *ctx, > +int _cdecl libusb_set_option(libusb_context *ctx, > enum libusb_option option, ...) > { > int arg = 0, r = LIBUSB_SUCCESS; not correct i think this...

> > 2. from "do_close" in core.c, in the scope of a lisbusb_close, shortly before backend function "close" is called. > i believe it is documented or known that application...

@chrisba77 strange w/o any "hotplug" support you should be able to re-use the device without driver re-install reboot etc if: -release any claimed interface -close the device -call exit on...

@chrisba77 if device is hid using standard os hid device driver then the issue could be os driver or the device itlsef. I can't see such issue with non hid...

That is the way it is handled even in kernel space likely for good reasons The app shall consider the xfer belong to lib when submitted It is easy to...

> Actually, even simpler is to enable `RAW_IO` dynamically when the transfer size is known to be multiple of 512 (which is divisible by all packet sizes). wrong assumption if...

> So does sigrok use this on many different devices or is it targeted to one or a few of them? I guess it is few (a lot) . Most...

@[tormodvolden](https://github.com/tormodvolden) hum to me 5ms is over kill and i never get so bad back to back pause time in between request even with the synch api , it's more...

PC but not only, what device on the same usb controller (look at device manager, view by connection) can make huge difference it's sometime enough to have irq or isoch...

Isoc is not quite suited to your need , interrupt type end point could be better as you data rate nor poll rate is excessive. Isoch packet sorting is a...