Hello Andy, Felipe, Sorry for the late reply. On Mon, Mar 20, 2017 at 6:23 PM, Felipe Balbi <felipe.balbi@xxxxxxxxxxxxxxx> wrote: > Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx> writes: >> Can you check my latest snapshot? I built your github eds branch as of cfa21022e (based on 4.11.0-rc3), but I still get enumeration issues (see below). I did not merge any other branches above it for this test (especially, not Felipe's usb branches) just in case. >> It has been discovered that ep1 and ep8 are not usable for USB (tracing >> related stuff). Felipe did a quick hack for that. Ah, thanks for the info, I did not keep track at all lately. > yeah, I have been writing a functionfs "driver" myself to test stuff > out. It's still pretty early but at least enumeration is rather solid. Mar 25 07:43:14 vincent-tkpad kernel: [1582082.400893] usb 1-1: USB disconnect, device number 22 Mar 25 07:43:16 vincent-tkpad kernel: [1582084.028746] usb 1-1: new high-speed USB device number 23 using xhci_hcd Mar 25 07:43:16 vincent-tkpad kernel: [1582084.159290] usb 1-1: New USB device found, idVendor=1d6b, idProduct=0104 Mar 25 07:43:16 vincent-tkpad kernel: [1582084.159294] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 Mar 25 07:43:16 vincent-tkpad kernel: [1582084.159296] usb 1-1: Product: tesla Mar 25 07:43:16 vincent-tkpad kernel: [1582084.159297] usb 1-1: Manufacturer: vpelletier Mar 25 07:43:16 vincent-tkpad kernel: [1582084.159298] usb 1-1: SerialNumber: FZED443D01T42501 Mar 25 07:43:21 vincent-tkpad kernel: [1582089.156950] usb 1-1: can't set config #1, error -110 Mar 25 07:43:21 vincent-tkpad mtp-probe: checking bus 1, device 23: "/sys/devices/pci0000:00/0000:00:14.0/usb1/1-1" Mar 25 07:43:21 vincent-tkpad mtp-probe: bus: 1, device: 23 was not an MTP device After a few plug/unplug cycles the device gets stuck and does not enumerate at all (instead of only failing to set the configuration) until device reboot. FWIW, at home enumeration happens much more reliably behind a hub than directly on a host (both being xHCI). Maybe my edison board has some electrical issue a hub would tolerate better ? Regards, -- Vincent Pelletier -- 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
