Problem dvb-usb dtt af9015 with XP1000

I have problem with af9015 on xp1000 this is many log of many command:

lsmod

root@xp1000:~# lsmod
Module                  Size  Used by
ipv6                  337278  22
dvb_usb_af9015         16776  0
dvb_usb_v2             14606  1 dvb_usb_af9015
dvb                  6632077  27
xp1000_3               32590  1 dvb
xp1000_2               22309  0
xp1000_1                6729  3 dvb,xp1000_2,xp1000_3

dmesg:

root@xp1000:~# dmesg | grep usb
         sata=0 docsis=0 pci=0 pcie=0 smp=0 usb=1
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
usbcore: registered new interface driver zd1201
__clk_enable: usb [1]
bcm7552_pm_usb_enable 00
usbcore: registered new interface driver usb-storage
usbcore: registered new interface driver btusb
usbcore: registered new interface driver usbhid
usbhid: USB HID core driver
usb 1-2: new high-speed USB device number 2 using ehci-brcm
usb-storage 1-2:1.0: USB Mass Storage device detected
scsi0 : usb-storage 1-2:1.0
usb 1-1: new high-speed USB device number 3 using ehci-brcm
usbcore: registered new interface driver tpm
usb 1-1: dvb_usb_v2: found a 'AverMedia AVerTV Volar Black HD (A850)' in cold st
ate
usb 1-1: dvb_usb_v2: downloading firmware from file 'dvb-usb-af9015.fw'
usb 1-1: dvb_usb_v2: found a 'AverMedia AVerTV Volar Black HD (A850)' in warm st
ate
usb 1-1: dvb_usb_v2: will pass the complete MPEG2 transport stream to the softwa
re demuxer
usbcore: registered new interface driver dvb_usb_af9015

but the tuner dtt is not detected.

thanks