Re: [PATCH 1/2] rust: usb: add basic USB abstractions

[Danilo Krummrich]

On 9/23/25 4:22 PM, Greg Kroah-Hartman wrote:
> On Tue, Sep 23, 2025 at 04:16:36PM +0200, Oliver Neukum wrote:
>> On 23.09.25 16:13, Greg Kroah-Hartman wrote:
>>
>>> Functions like usb_fill_bulk_urb() takes a pointer to a usb_device, not
>>> an interface.  Yes, we should fix that, but that "mistake" dates way way
>>> way back to the original USB api decades ago.  So much so that I didn't
>>> even remember that we used that pointer there :)
>>
>> How would we do that? We need to be able to send at least control
>> request to devices before we have established which configurations
>> or interfaces the device has.
> 
> Oops, I thought that usb_dev in struct usb_interface was a pointer to
> struct usb_device, but no, it's something else...  So no, we need to
> keep that as-is for now.

You can still get it via interface_to_usbdev(), no?