[PATCH] usb: ohci-at91: Use dynamic device name for OHCI HCD creation

Alan Stern stern at rowland.harvard.edu
Wed Jun 11 07:08:41 PDT 2025


On Wed, Jun 11, 2025 at 10:54:15AM +0300, Mihai Sain wrote:
> Use the dynamic device name instead of the hardcoded string "at91"
> when creating the OHCI host controller driver.
> This ensures that the device name is more flexible
> and correctly reflects the actual device in the system.
> This will be in sync with ehci at91 driver.
> 
> [root at sam9x75eb ~]$ dmesg | grep usb
> [    1.464487] usb usb1: Manufacturer: Linux 6.16.0-rc1 ehci_hcd
> [    1.470210] usb usb1: SerialNumber: 700000.usb-ehci
> [    1.595683] usb usb2: Manufacturer: Linux 6.16.0-rc1 ohci_hcd
> [    1.601406] usb usb2: SerialNumber: 600000.usb-ohci
> 
> [root at sam9x75eb ~]$ cat /proc/iomem | grep usb
> 00600000-006fffff : 600000.usb-ohci usb-ohci at 600000
> 00700000-007fffff : 700000.usb-ehci usb-ehci at 700000

Are these two outputs supposed to make some sort of point?  It would be 
better to have a before-and-after comparison, so we can see what the 
effect of the patch is.

Alan Stern



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