Re: Per USB device interrupt handler for xhci

2019-07-08 Thread yunhua li
Thank you Greg, So it seems xhci's interrupt based on it's rx/tx queue(ring), the ring is shared by all USB device, it is not aware of "per USB device"? Regards Yunhua On Fri, Jul 5, 2019 at 9:46 PM Greg KH wrote: > > On Fri, Jul 05, 2019 at 07:50:28PM -0700, yunhua li wrote: > > Hi all > > >

Re: Per USB device interrupt handler for xhci

2019-07-05 Thread Greg KH
On Fri, Jul 05, 2019 at 07:50:28PM -0700, yunhua li wrote: > Hi all > > xhci_msi_irq is the interrupt handler for xhci, the controller it self > is a PCI device, on my system it is a Intel chip. I have multiple USB > device connect to this USB host controller, xhci_msi_irq is interrupt > handler

Per USB device interrupt handler for xhci

2019-07-05 Thread yunhua li
Hi all xhci_msi_irq is the interrupt handler for xhci, the controller it self is a PCI device, on my system it is a Intel chip. I have multiple USB device connect to this USB host controller, xhci_msi_irq is interrupt handler for the PCI device(USB Host controller). Is it possible to have multip