On Tue, Feb 21, 2017 at 01:56:22PM -0300, Cristian wrote: > 2017-02-21 2:04 GMT-03:00 Greg KH <gregkh@xxxxxxxxxxxxxxxxxxx>: > > On Mon, Feb 20, 2017 at 03:28:37PM -0300, Cristian wrote: > >> Hello, > >> > >> dmesg: > >> [ 2.465370] usbhid 3-2:1.1: couldn't find an input interrupt endpoint > > > > And does this cause a problem? Does the device not work? > > What is the output of 'lsusb -v -s3:2' with the device plugged in? > > > caravena@caravena-530U3C-530U4C:~$ lsusb -v -s3:2 > > Bus 003 Device 002: ID 046d:c077 Logitech, Inc. M105 Optical Mouse > Couldn't open device, some information will be missing > Device Descriptor: > bLength 18 > bDescriptorType 1 > bcdUSB 2.00 > bDeviceClass 0 (Defined at Interface level) > bDeviceSubClass 0 > bDeviceProtocol 0 > bMaxPacketSize0 8 > idVendor 0x046d Logitech, Inc. > idProduct 0xc077 M105 Optical Mouse > bcdDevice 72.00 > iManufacturer 1 > iProduct 2 > iSerial 0 > bNumConfigurations 1 > Configuration Descriptor: > bLength 9 > bDescriptorType 2 > wTotalLength 34 > bNumInterfaces 1 > bConfigurationValue 1 > iConfiguration 0 > bmAttributes 0xa0 > (Bus Powered) > Remote Wakeup > MaxPower 100mA > Interface Descriptor: > bLength 9 > bDescriptorType 4 > bInterfaceNumber 0 > bAlternateSetting 0 > bNumEndpoints 1 > bInterfaceClass 3 Human Interface Device > bInterfaceSubClass 1 Boot Interface Subclass > bInterfaceProtocol 2 Mouse > iInterface 0 > HID Device Descriptor: > bLength 9 > bDescriptorType 33 > bcdHID 1.11 > bCountryCode 0 Not supported > bNumDescriptors 1 > bDescriptorType 34 Report > wDescriptorLength 46 > Report Descriptors: > ** UNAVAILABLE ** > Endpoint Descriptor: > bLength 7 > bDescriptorType 5 > bEndpointAddress 0x81 EP 1 IN > bmAttributes 3 > Transfer Type Interrupt > Synch Type None > Usage Type Data > wMaxPacketSize 0x0004 1x 4 bytes > bInterval 10 Your device has an interrupt endpoint in there, odd. Does it still work properly? Is this a regression from an older kernel version? If so, can you use 'git bisect' to track down the offending commit? thanks, greg k-h -- 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
