Re: [PATCH] usb: core: Notify through uevent when not enough bandwidth available

[Greg Kroah-Hartman]

On Mon, Jun 15, 2026 at 10:35:33AM -0400, Nícolas F. R. A. Prado wrote:
> Currently, when a new device is plugged in and the host controller can't
> find enough bandwidth for it, an error message is printed:
> 
>   usb 1-3: Not enough bandwidth for new device state.
> 
> In order to allow userspace to react to this and suggest the user to use
> a different host controller, send a uevent with
> 'USB_NOT_ENOUGH_BANDWIDTH=1' to the root hub device.

Where is this new user/kernel api now documented?  And what tool is
going to be looking for it?

thanks,

greg k-h