search for: sndrv_ctl_ioctl_pversion

...= 0 write(2, " 0.575600\t", 12) = 12 write(2, "Checking USB device [1d6b:0001] "..., 42) = 42 open("/dev/bus/usb/009/001", O_RDWR) = -1 EACCES (Permission denied) open("/dev/bus/usb/009/001", O_RDONLY) = 4 ioctl(4, SNDRV_CTL_IOCTL_PVERSION or USBDEVFS_CONTROL, 0x7fff2c4c0080) = -1 EPERM (Operation not permitted) ioctl(4, SNDRV_CTL_IOCTL_PVERSION or USBDEVFS_CONTROL, 0x7fff2c4c0080) = -1 EPERM (Operation not permitted) ioctl(4, SNDRV_CTL_IOCTL_PVERSION or USBDEVFS_CONTROL, 0x7fff2c4c0080) = -1 EPERM (Operation not permitted) close(4)...

On Jan 12, 2014, at 11:07 AM, Ariel Wainer wrote: > On 11/01/14 15:27, Charles Lepple wrote: >> On Jan 10, 2014, at 4:46 PM, Ariel Wainer wrote: >> >>> On 10/01/14 01:53, Charles Lepple wrote: >>>> I am curious about why the Interrupt Out packet is sent by the Windows software if it isn't to turn off the UPS. Is it possible to do some more testing with

...25000) > The UPS was connected to device 001/002 again as I ran the strace. The output is attached. That's strange. The return codes seem to imply that the requests are timing out, rather than there being a permissions problem: open("/dev/bus/usb/001/002", O_RDWR) = 4 ioctl(4, SNDRV_CTL_IOCTL_PVERSION or USBDEVFS_CONTROL, 0xbff9a28c) = 4 ioctl(4, SNDRV_CTL_IOCTL_PVERSION or USBDEVFS_CONTROL, 0xbff9a28c) = 26 ioctl(4, SNDRV_CTL_IOCTL_PVERSION or USBDEVFS_CONTROL, 0xbff9a28c) = 4 ioctl(4, SNDRV_CTL_IOCTL_PVERSION or USBDEVFS_CONTROL, 0xbff9a28c) = 26 ioctl(4, SNDRV_CTL_IOCTL_PVERSION or USBDEVFS_C...

The output of the ldd command is: root at minime:~# ldd /lib/nut/nutdrv_atcl_usb linux-gate.so.1 (0xb7722000) libusb-0.1.so.4 => /lib/i386-linux-gnu/libusb-0.1.so.4 (0xb76fe000) libpthread.so.0 => /lib/i386-linux-gnu/i686/cmov/libpthread.so.0 (0xb76e2000) libc.so.6 => /lib/i386-linux-gnu/i686/cmov/libc.so.6 (0xb7536000) /lib/ld-linux.so.2