[Shield Android TV General] locki:
c:\adb>fastboot boot shield-atv-2015-7.0.2-kernel-3.19.8.img

downloading 'boot.img'...

OKAY [ 0.375s]

booting...

OKAY [ 0.004s]

finished. total time: 0.382s

foster:/ # uname -r

3.10.96-tegra

with xbox tuner:

[32m[ 159.375712] [0m[33musb 2-3[0m: USB disconnect, device number 2
[32m[ 162.162449] [0m[33musb 2-3[0m: new high-speed USB device number 4 using tegra-xhci
[32m[ 162.183237] [0m[33musb 2-3[0m: New USB device found, idVendor=045e, idProduct=02d5
[32m[ 162.183249] [0m[33musb 2-3[0m: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[32m[ 162.183258] [0m[33musb 2-3[0m: Product: Xbox USB Tuner
[32m[ 162.183266] [0m[33musb 2-3[0m: Manufacturer: Microsoft Corp.
[32m[ 162.183274] [0m[33musb 2-3[0m: SerialNumber: 005091110615

foster:/ # dmesg|grep dvb
1|foster:/ #
1|foster:/ # cd /
foster:/ # dmesg|grep DVB
1|foster:/ # dmesg|grep firmware
[ 9.516642] ueventd: fixup /sys/devices/platform/tegra-xhci/firmware/tegra21x_xusb_firmware/brightness 1000 1000 660
[ 9.516685] ueventd: fixup /sys/devices/platform/tegra-xhci/firmware/tegra21x_xusb_firmware/brightness2 1000 1000 660
[ 9.516722] ueventd: fixup /sys/devices/platform/tegra-xhci/firmware/tegra21x_xusb_firmware/state 1000 1000 660
[ 9.516759] ueventd: fixup /sys/devices/platform/tegra-xhci/firmware/tegra21x_xusb_firmware/state2 1000 1000 660
[ 9.516822] ueventd: fixup /sys/devices/platform/tegra-xhci/firmware/tegra21x_xusb_firmware/mode 1000 1000 660
[ 9.518150] ueventd: firmware: loading 'tegra21x_xusb_firmware' for '/devices/platform/tegra-xhci/firmware/tegra21x_xusb_firmware'
[ 11.224774] tegra-xhci tegra-xhci: Firmware File: tegra21x_xusb_firmware (126464 Bytes)
[ 11.224796] ueventd: loading /devices/platform/tegra-xhci/firmware/tegra21x_xusb_firmware took 1.70673 seconds
[ 18.760496] init: processing action (firmware_mounts_complete)
foster:/ # ls -laZ /data/firmware
total 68
drwxrwxrwx 2 media_rw media_rw u:object_r:dvb_file:s0 4096 2018-09-30 00:34 .
drwxrwx--x 41 system system u:object_r:system_data_file:s0 4096 2018-09-29 22:40 ..
-rw-rw-rw- 1 root root u:object_r:dvb_file:s0 2005 2018-09-30 00:20 dvb-demod-mn88472-02.fw
-rw-rw-rw- 1 root root u:object_r:dvb_file:s0 6919 2018-09-20 19:19 dvb-demod-si2168-b40-01.fw
-rw-rw-rw- 1 root root u:object_r:dvb_file:s0 5015 2018-09-20 19:19 dvb-tuner-si2158-a20-01.fw
-rw-rw-rw- 1 root root u:object_r:dvb_file:s0 33768 2018-09-30 00:22 dvb-usb-dib0700-1.20.fw
foster:/ # ls -laZ /data/dvb/firmware
total 64
drwxrwxrwx 2 media_rw media_rw u:object_r:dvb_file:s0 4096 2018-09-30 00:39 .
drwxrwxrwx 4 media_rw media_rw u:object_r:dvb_file:s0 4096 2018-09-29 22:41 ..
-rw-rw-rw- 1 root root u:object_r:dvb_file:s0 2005 2018-09-30 00:39 dvb-demod-mn88472-02.fw
-rw-rw-rw- 1 root root u:object_r:dvb_file:s0 6919 2018-09-20 19:19 dvb-demod-si2168-b40-01.fw
-rw-rw-rw- 1 root root u:object_r:dvb_file:s0 5015 2018-09-20 19:19 dvb-tuner-si2158-a20-01.fw
-rw-rw-rw- 1 root root u:object_r:dvb_file:s0 33768 2018-09-30 00:39 dvb-usb-dib0700-1.20.fw
foster:/ #

with T230 tuner:

[32m[ 296.092458] [0m[33musb 2-3[0m: USB disconnect, device number 4
[32m[ 303.322440] [0m[33musb 2-3[0m: new high-speed USB device number 5 using tegra-xhci
[32m[ 303.342837] [0m[33musb 2-3[0m: config 1 interface 0 altsetting 0 bulk endpoint 0x86 has invalid maxpacket 188
[32m[ 303.343419] [0m[33musb 2-3[0m[31m: string descriptor 0 malformed (err = -61), defaulting to 0x0409[0m
[32m[ 303.353071] [0m[33musb 2-3[0m: New USB device found, idVendor=0572, idProduct=c688
[32m[ 303.353081] [0m[33musb 2-3[0m: New USB device strings: Mfr=1, Product=2, SerialNumber=3

foster:/ # dmesg|grep dvb
1|foster:/ # cd /
foster:/ # dmesg|grep DVB
1|foster:/ # cd /
foster:/ # dmesg|grep firmware
[ 11.224774] tegra-xhci tegra-xhci: Firmware File: tegra21x_xusb_firmware (126464 Bytes)
[ 11.224796] ueventd: loading /devices/platform/tegra-xhci/firmware/tegra21x_xusb_firmware took 1.70673 seconds
[ 18.760496] init: processing action (firmware_mounts_complete)
foster:/ # ls -laZ /data/firmware
total 68
drwxrwxrwx 2 media_rw media_rw u:object_r:dvb_file:s0 4096 2018-09-30 00:34 .
drwxrwx--x 41 system system u:object_r:system_data_file:s0 4096 2018-09-29 22:40 ..
-rw-rw-rw- 1 root root u:object_r:dvb_file:s0 2005 2018-09-30 00:20 dvb-demod-mn88472-02.fw
-rw-rw-rw- 1 root root u:object_r:dvb_file:s0 6919 2018-09-20 19:19 dvb-demod-si2168-b40-01.fw
-rw-rw-rw- 1 root root u:object_r:dvb_file:s0 5015 2018-09-20 19:19 dvb-tuner-si2158-a20-01.fw
-rw-rw-rw- 1 root root u:object_r:dvb_file:s0 33768 2018-09-30 00:22 dvb-usb-dib0700-1.20.fw
foster:/ # ls -laZ /data/dvb/firmware
total 64
drwxrwxrwx 2 media_rw media_rw u:object_r:dvb_file:s0 4096 2018-09-30 00:39 .
drwxrwxrwx 4 media_rw media_rw u:object_r:dvb_file:s0 4096 2018-09-29 22:41 ..
-rw-rw-rw- 1 root root u:object_r:dvb_file:s0 2005 2018-09-30 00:39 dvb-demod-mn88472-02.fw
-rw-rw-rw- 1 root root u:object_r:dvb_file:s0 6919 2018-09-20 19:19 dvb-demod-si2168-b40-01.fw
-rw-rw-rw- 1 root root u:object_r:dvb_file:s0 5015 2018-09-20 19:19 dvb-tuner-si2158-a20-01.fw
-rw-rw-rw- 1 root root u:object_r:dvb_file:s0 33768 2018-09-30 00:39 dvb-usb-dib0700-1.20.fw
foster:/ #

it looks like usb are in some weird mode or something ... :(