https://bugzilla.kernel.org/show_bug.cgi?id=209411 --- Comment #2 from rachithas104@xxxxxxxxx --- (In reply to Greg Kroah-Hartman from comment #1) > On Sun, Sep 27, 2020 at 05:51:20PM +0000, > bugzilla-daemon@xxxxxxxxxxxxxxxxxxx wrote: > > https://bugzilla.kernel.org/show_bug.cgi?id=209411 > > > > Bug ID: 209411 > > Summary: When retrieving string descriptor from mobile device > > returns eproto error > > Product: Drivers > > Version: 2.5 > > Kernel Version: 4.19 > > Hardware: All > > OS: Linux > > Tree: Mainline > > Status: NEW > > Severity: normal > > Priority: P1 > > Component: USB > > Assignee: drivers_usb@xxxxxxxxxxxxxxxxxxxxxx > > Reporter: rachithas104@xxxxxxxxx > > Regression: No > > > > I am trying to get get string descriptor from mobile phone,however when > > trying > > to retrieve one particular index it returns EPROTO, > > > > dev->fd, USB_DIR_IN,USB_REQ_GET_DESCRIPTOR,DESCRIPT_STRING * 256 + index, > > languageid, sizeof buf, buf); > > > > Return value is -1 for ioctl(fd, USBDEVFS_CONTROL, &ioctl_ctrl); > > > > kernel: [ 7084.327097] usb 1-1.2: reset high-speed USB device number 12 > using > > ehci-pci > > kernel: [ 7084.831056] usb 1-1.2: device not accepting address 12, error > -71 > > kernel: [ 7085.119075] usb 1-1.2: reset high-speed USB device number 12 > using > > ehci-pci > > kernel: [ 7085.431054] usb 1-1.2: reset high-speed USB device number 12 > > using > > ehci-pci > > [ 7085.935069] usb 1-1.2: device not accepting address 12, error -71 > > [ 7086.227132] usb 1-1.2: reset high-speed USB device number 12 using > > ehci-pci > > S[ 7087.321929] usb 1-1.2: usbfs: USBDEVFS_CONTROL failed cmd ctxusb rqt > 128 > > rq > > 6 len 255 ret -71 > > kernel: [ 7087.607093] usb 1-1.2: reset high-speed USB device number 12 > > using > > ehci-pci > > > > My URB request and without my program in picture request is same > > Not all strings are readable from the device, are you sure that is a > valid string descriptor index to be requesting? Yes its valid string, -- You are receiving this mail because: You are watching the assignee of the bug.
