Write without response on multiple devices

[lilliesAndRoses]

Hi,
I am using noble to connect to multiple devices.
There are cases where I want to do writes without responses on multiple devices.
I get libusb errors when I transfer to more than 3 elements.
Which parameters do I need to tune if I am to support simultaneous writes for bulk transfers across multiple devices - say 4 in the minimum.
In the libusb documentation, I see there are different transport types - control, bulk, isochronous etc but the hci library uses only the control transfers. Do we need any tweaks to the HCI protocol if we were to do bulk data transfer on multiple devices or is it simply not possible with the available USB devices.

[rzr]

Feel free to comment this related ticket:

abandonware#9