Hi All, We've had a report [1] of the USB layer throwing out 'unable to find transceiver' messages during boot with the 3.14 merge window kernels. I've seen this on my personal machine as well and included the dmesg section below. This does not happen with the 3.13 kernel. There are only a handful of files in git that have that error, but I haven't seen anything that immediately strikes me as causing this. >From the dmesg output it looks like it is spit out right before a host controller is registered? USB seems to be still working OK in my minimal testing, so the error message is confusing. Thoughts? [1] https://bugzilla.redhat.com/show_bug.cgi?id=1057529 josh [ 1.683368] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver [ 1.683386] ehci-pci: EHCI PCI platform driver [ 1.684765] unable to find transceiver [ 1.684993] ehci-pci 0000:00:1a.0: EHCI Host Controller [ 1.685772] ehci-pci 0000:00:1a.0: new USB bus registered, assigned bus number 1 [ 1.685847] ehci-pci 0000:00:1a.0: debug port 2 [ 1.689837] ehci-pci 0000:00:1a.0: cache line size of 64 is not supported [ 1.689976] ehci-pci 0000:00:1a.0: irq 16, io mem 0xfe707000 [ 1.695158] ehci-pci 0000:00:1a.0: USB 2.0 started, EHCI 1.00 [ 1.695721] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002 [ 1.695722] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1 [ 1.695724] usb usb1: Product: EHCI Host Controller [ 1.695725] usb usb1: Manufacturer: Linux 3.14.0-0.rc0.git7.1.fc21.x86_64 ehci_hcd [ 1.695726] usb usb1: SerialNumber: 0000:00:1a.0 [ 1.697752] hub 1-0:1.0: USB hub found [ 1.697872] hub 1-0:1.0: 2 ports detected [ 1.701620] unable to find transceiver [ 1.701847] ehci-pci 0000:00:1d.0: EHCI Host Controller [ 1.702424] ehci-pci 0000:00:1d.0: new USB bus registered, assigned bus number 2 [ 1.702458] ehci-pci 0000:00:1d.0: debug port 2 [ 1.706417] ehci-pci 0000:00:1d.0: cache line size of 64 is not supported [ 1.706538] ehci-pci 0000:00:1d.0: irq 23, io mem 0xfe706000 [ 1.712160] ehci-pci 0000:00:1d.0: USB 2.0 started, EHCI 1.00 -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
