Linux cubietruck 3.4.113-sun7i version.
The touchscreen doesn't work.
Information on a touchscreen.
Response to the command "dmesg":
...
[ 12.190584] input: Touch Touch Device T1 as /devices/platform/sw-ehci.2/usb4/4-1/4-1.3/4-1.3:1.0/input/input2
[ 12.205405] hid-multitouch 0003:1FF7:0013.0001: input,hiddev0,hidraw0: USB HID v1.11 Keyboard [Touch Touch Device T1] on usb-sw-ehci-1.3/input0
[ 12.211921] usbcore: registered new interface driver eucr
[ 12.232911] sd 1:0:0:0: Attached scsi generic sg0 type 0
[ 12.237727] sd 2:0:0:0: Attached scsi generic sg1 type 0
[ 12.298823] input: Touch Touch Device T1 as /devices/platform/sw-ehci.2/usb4/4-1/4-1.3/4-1.3:1.1/input/input3
[ 12.351571] hid-multitouch 0003:1FF7:0013.0002: input,hiddev0,hidraw1: USB HID v1.10 Mouse [Touch Touch Device T1] on usb-sw-ehci-1.3/input1
...
[ 3052.626051] hid-multitouch 0003:1FF7:0013.0001: can't reset device, sw-ehci-1.3/input0, status -71
[ 3052.648371] hid-multitouch 0003:1FF7:0013.0001: can't reset device, sw-ehci-1.3/input0, status -71
[ 3052.670734] hid-multitouch 0003:1FF7:0013.0001: can't reset device, sw-ehci-1.3/input0, status -71
[ 3052.692970] hid-multitouch 0003:1FF7:0013.0001: can't reset device, sw-ehci-1.3/input0, status -71
[ 3052.706853] usb 4-1.3: USB disconnect, device number 4
[ 3053.053445] usb 4-1.3: new full-speed USB device number 6 using sw-ehci
[ 3053.205528] input: Touch Touch Device T1 as /devices/platform/sw-ehci.2/usb4/4-1/4-1.3/4-1.3:1.0/input/input4
[ 3053.219532] hid-multitouch 0003:1FF7:0013.0003: input,hiddev0,hidraw0: USB HID v1.11 Keyboard [Touch Touch Device T1] on usb-sw-ehci-1.3/input0
[ 3053.236939] input: Touch Touch Device T1 as /devices/platform/sw-ehci.2/usb4/4-1/4-1.3/4-1.3:1.1/input/input5
[ 3053.251759] hid-multitouch 0003:1FF7:0013.0004: input,hiddev0,hidraw1: USB HID v1.10 Mouse [Touch Touch Device T1] on usb-sw-ehci-1.3/input1
[ 3176.434287] hid-multitouch 0003:1FF7:0013.0003: can't reset device, sw-ehci-1.3/input0, status -71
...
[15061.406646] input: Touch Touch Device T1 as /devices/platform/sw-ehci.2/usb4/4-1/4-1.3/4-1.3:1.1/input/input25
[15061.419502] hid-multitouch 0003:1FF7:0013.0018: input,hiddev0,hidraw1: USB HID v1.10 Mouse [Touch Touch Device T1] on usb-sw-ehci-1.3/input1
Response to the command "lsusb -tv":
/: Bus 05.Port 1: Dev 1, Class=root_hub, Driver=sw-ohci/1p, 12M
/: Bus 04.Port 1: Dev 1, Class=root_hub, Driver=sw-ehci/1p, 480M
|__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/4p, 480M
|__ Port 1: Dev 3, If 0, Class=Mass Storage, Driver=usb-storage, 480M
|__ Port 3: Dev 15, If 0, Class=Human Interface Device, Driver=usbhid, 12M
|__ Port 3: Dev 15, If 1, Class=Human Interface Device, Driver=usbhid, 12M
|__ Port 4: Dev 5, If 0, Class=Mass Storage, Driver=usb-storage, 480M
/: Bus 03.Port 1: Dev 1, Class=root_hub, Driver=sw-ohci/1p, 12M
|__ Port 1: Dev 2, If 0, Class=Human Interface Device, Driver=usbhid, 12M
|__ Port 1: Dev 2, If 1, Class=Human Interface Device, Driver=usbhid, 12M
/: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=sw-ehci/1p, 480M
/: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=sw_hcd_host0/1p, 480M
Response to the command "lsusb -v":
...
Bus 004 Device 015: ID 1ff7:0013 CVT Electronics.Co.,Ltd CVTouch Screen (HID)
...
Response to the command "lsmod":
Module Size Used by
bnep 14360 2
cpufreq_userspace 3540 0
sg 23918 0
keucr 58671 0
hid_multitouch 7719 0
mali 112222 0
ump 61778 1 mali
ap6210 623704 0
sunxi_ir 4044 0
hidp 17740 0
rfcomm 58820 2
hci_uart 25074 1
bluetooth 265449 27 bnep,hidp,hci_uart,rfcomm
++++++++++++++++++++++++++++++++++++++
Linux cubietruck 4.9.11-sunxi version.
The touchscreen works.
Information on a touchscreen.
Response to the command "dmesg":
...
[ 5.595234] usb 2-1.3: Product: Touch Device T1
[ 5.595240] usb 2-1.3: Manufacturer: Touch
[ 5.595245] usb 2-1.3: SerialNumber: WГїnq\xffffffc2\xffffff84WH2g28
[ 5.617178] input: Touch Touch Device T1 as /devices/platform/soc@01c00000/1c1c000.usb/usb2/2-1/2-1.3/2-1.3:1.1/0003:1FF7:0013.0004/input/input3
[ 5.623122] hid-generic 0003:1FF7:0013.0004: input,hiddev0,hidraw2: USB HID v1.10 Mouse [Touch Touch Device T1] on usb-1c1c000.usb-1.3/input1
...
[ 11.903343] input: Touch Touch Device T1 as /devices/platform/soc@01c00000/1c1c000.usb/usb2/2-1/2-1.3/2-1.3:1.0/0003:1FF7:0013.0003/input/input5
[ 11.932020] hid-multitouch 0003:1FF7:0013.0003: input,hiddev0,hidraw3: USB HID v1.11 Keyboard [Touch Touch Device T1] on usb-1c1c000.usb-1.3/input0
...
Response to the command "lsusb -tv":
/: Bus 05.Port 1: Dev 1, Class=root_hub, Driver=musb-hdrc/1p, 480M
/: Bus 04.Port 1: Dev 1, Class=root_hub, Driver=ohci-platform/1p, 12M
/: Bus 03.Port 1: Dev 1, Class=root_hub, Driver=ohci-platform/1p, 12M
|__ Port 1: Dev 2, If 0, Class=Human Interface Device, Driver=usbhid, 12M
|__ Port 1: Dev 2, If 1, Class=Human Interface Device, Driver=usbhid, 12M
/: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=ehci-platform/1p, 480M
|__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/4p, 480M
|__ Port 1: Dev 3, If 0, Class=Mass Storage, Driver=usb-storage, 480M
|__ Port 3: Dev 4, If 0, Class=Human Interface Device, Driver=usbhid, 12M
|__ Port 3: Dev 4, If 1, Class=Human Interface Device, Driver=usbhid, 12M
|__ Port 4: Dev 5, If 0, Class=Mass Storage, Driver=usb-storage, 480M
/: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=ehci-platform/1p, 480M
Response to the command "lsusb -v":
...
Bus 002 Device 004: ID 1ff7:0013 CVT Electronics.Co.,Ltd CVTouch Screen (HID)
Response to the command "lsmod":
Module Size Used by
fuse 62777 3
ir_xmp_decoder 2583 0
ir_mce_kbd_decoder 3454 0
ir_sharp_decoder 1921 0
ir_sanyo_decoder 2113 0
ir_sony_decoder 1938 0
ir_jvc_decoder 1936 0
ir_rc6_decoder 2429 0
ir_nec_decoder 2365 0
ir_rc5_decoder 2064 0
bnep 8221 2
hci_uart 13285 1
snd_soc_simple_card 4330 1
snd_soc_simple_card_utils 2374 1 snd_soc_simple_card
snd_soc_spdif_tx 1936 1
sun4i_codec 10104 3
sun4i_spdif 4004 2
hid_multitouch 8053 0
ir_lirc_codec 4088 0
lirc_dev 6245 1 ir_lirc_codec
snd_soc_core 97876 5 snd_soc_spdif_tx,sun4i_codec,snd_soc_simple_card_utils,sun4i_spdif,snd_soc_simple_card
snd_pcm_dmaengine 2770 1 snd_soc_core
snd_pcm 57757 2 snd_pcm_dmaengine,snd_soc_core
pwm_sun4i 4180 0
snd_timer 14809 1 snd_pcm
sunxi_cir 3159 0
nvmem_sunxi_sid 1967 0
snd 35783 9 snd_timer,snd_soc_core,snd_pcm
soundcore 858 1 snd
nvmem_core 7158 1 nvmem_sunxi_sid
sun4i_ts 3414 0
evdev 9412 8
input_leds 2292 0
sun4i_ss 13213 0
cpufreq_dt 2920 0
uio_pdrv_genirq 2780 0
uio 6272 1 uio_pdrv_genirq
bonding 82855 0
hidp 10350 0
rfcomm 25650 14
bluetooth 247788 39 hidp,hci_uart,bnep,rfcomm
brcmfmac 144129 0
brcmutil 4189 1 brcmfmac
cfg80211 337391 1 brcmfmac
rfkill 8383 6 bluetooth,cfg80211
uas 10265 0
pwrseq_simple 2066 1
realtek 2583 0
From this information it is visible that the touchscreen in system is defined.
The system tries to drop it, but can't.
Obviously in a kernel the necessary modules aren't set.