Human Interface Device Game Controller

Linux Kernel Drivers HID Kconfig

#
# HID driver configuration
#
menu "HID support"
     depends on INPUT

config HID
    tristate "HID bus support"
    depends on INPUT
    default y
    ---help---
      A human interface device (HID) is a type of computer device that
      interacts directly with and takes input from humans. The term "HID"
      most commonly used to refer to the USB-HID specification, but other
      devices (such as, but not strictly limited to, Bluetooth) are
      designed using HID specification (this involves certain keyboards,
      mice, tablets, etc). This option adds the HID bus to the kernel,
      together with generic HID layer code. The HID devices are added and
      removed from the HID bus by the transport-layer drivers, such as
      usbhid (USB_HID) and hidp (BT_HIDP).

      For docs and specs, see http://www.usb.org/developers/hidpage/

config HID_GENERIC
    tristate "Generic HID driver"
    depends on HID
    default HID
    ---help---
    Support for generic devices on the HID bus. This includes most
    keyboards and mice, joysticks, tablets and digitizers.

    To compile this driver as a module, choose M here: the module
    will be called hid-generic.

root@edison:~# bluetoothctl
[NEW] Controller 98:4F:EE:04:21:2A edison [default]
[NEW] Device 58:51:00:00:41:4D BT MINI
[NEW] Device 6F:E8:92:3B:FB:06 6F-E8-92-3B-FB-06
[NEW] Device F1:C1:83:A4:17:0C Evolutel

[bluetooth]# scan on
Discovery started
[CHG] Controller 98:4F:EE:04:21:2A Discovering: yes
[CHG] Device F1:C1:83:A4:17:0C RSSI: -53
[CHG] Device F1:C1:83:A4:17:0C TxPower: -12
[NEW] Device 20:16:04:13:03:CE 20-16-04-13-03-CE
[CHG] Device 20:16:04:13:03:CE LegacyPairing: no
[CHG] Device 20:16:04:13:03:CE Name: VR-PARK
[CHG] Device 20:16:04:13:03:CE Alias: VR-PARK
[CHG] Device 20:16:04:13:03:CE LegacyPairing: yes

[bluetooth]# scan off
[CHG] Device 20:16:04:13:03:CE RSSI is nil
[CHG] Device F1:C1:83:A4:17:0C TxPower is nil
[CHG] Device F1:C1:83:A4:17:0C RSSI is nil
[CHG] Controller 98:4F:EE:04:21:2A Discovering: no
Discovery stopped
[bluetooth]#

[bluetooth]# pair 20:16:04:13:03:CE
Attempting to pair with 20:16:04:13:03:CE
[CHG] Device 20:16:04:13:03:CE Connected: yes
[CHG] Device 20:16:04:13:03:CE Modalias: usb:v05ACp3232d0001
[CHG] Device 20:16:04:13:03:CE UUIDs: 00001124-0000-1000-8000-00805f9b34fb
[CHG] Device 20:16:04:13:03:CE UUIDs: 00001200-0000-1000-8000-00805f9b34fb
[CHG] Device 20:16:04:13:03:CE Paired: yes
Pairing successful
[CHG] Device 20:16:04:13:03:CE Connected: no

[bluetooth]# connect 20:16:04:13:03:CE
Attempting to connect to 20:16:04:13:03:CE
[CHG] Device 20:16:04:13:03:CE Connected: yes
Connection successful
[VR-PARK]# [ 1811.274092] hid-generic 0005:05AC:3232.0002: unknown main item tag 0x0

[VR-PARK]# paired-devices
Device 20:16:04:13:03:CE VR-PARK
[VR-PARK]# exit
[DEL] Controller 98:4F:EE:04:21:2A edison [default]

root@edison:~# dmesg
[ 1404.240260] pmic_ccsm pmic_ccsm: USB VBUS Removed. Notifying OTG driver
[ 1685.170050] hid-generic 0005:05AC:3232.0001: unknown main item tag 0x0
[ 1685.171030] input: VR-PARK as /devices/pci0000:00/0000:00:04.1/tty/ttyMFD0/h
ci0/hci0:12/input3
[ 1685.179288] hid-generic 0005:05AC:3232.0001: input,hidraw0: BLUETOOTH HID v0
.01 Mouse [VR-PARK] on 98:4f:ee:04:21:2a
[ 1811.274092] hid-generic 0005:05AC:3232.0002: unknown main item tag 0x0
[ 1811.275029] input: VR-PARK as /devices/pci0000:00/0000:00:04.1/tty/ttyMFD0/h
ci0/hci0:11/input4
[ 1811.288008] hid-generic 0005:05AC:3232.0002: input,hidraw0: BLUETOOTH HID v0
.01 Mouse [VR-PARK] on 98:4f:ee:04:21:2a
[ 2323.876693] perf samples too long (2540 > 2500), lowering kernel.perf_event_
max_sample_rate to 50000

root@edison:~# cat /sys/class/bluetooth/hci0/name
edison
root@edison:~# ls /sys/class/bluetooth/hci0     
hci0/    hci0:11/ 
root@edison:~# ls /sys/class/bluetooth/hci0:11/
0005:05AC:3232.0002  device    input4  subsystem  uevent
address              features  power   type
root@edison:~# cat /sys/class/bluetooth/hci0:11/type  
ACL
root@edison:~# ls /sys/class/bluetooth/hci0:11/input4/ 
capabilities  event2  modalias  phys   properties  uevent
device        id      name      power  subsystem   uniq
root@edison:~# cat /sys/class/bluetooth/hci0:11/input4/name
VR-PARK
root@edison:~#

root@edison:~#wget https://raw.githubusercontent.com/TheIoTLearningInitiative/EmbeddedLinux/master/tools/evtest.c
--2016-10-17 02:33:48--  https://raw.githubusercontent.com/TheIoTLearningInitiative/EmbeddedLinux/master/tools/evtest.c
Resolving raw.githubusercontent.com... 151.101.48.133
Connecting to raw.githubusercontent.com|151.101.48.133|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 15169 (15K) [text/plain]
Saving to: 'evtest.c'

100%[======================================>] 15,169      --.-K/s   in 0.1s    

2016-10-17 02:33:50 (124 KB/s) - 'evtest.c' saved [15169/15169]

FINISHED --2016-10-17 02:33:50--
Total wall clock time: 17s
Downloaded: 1 files, 15K in 0.1s (124 KB/s)

root@edison:~# gcc -o evtest evtest.c

root@edison:~# ./evtest /dev/input/event2
...
Testing ... (interrupt to exit)
Event: time 1476671884.164894, type 4 (Misc), code 4 (ScanCode), value 90005
Event: time 1476671884.164894, type 1 (Key), code 308 (BtnY), value 1
Event: time 1476671884.164894, -------------- Report Sync ------------
Event: time 1476671884.296148, type 4 (Misc), code 4 (ScanCode), value 90005
Event: time 1476671884.296148, type 1 (Key), code 308 (BtnY), value 0
Event: time 1476671884.296148, -------------- Report Sync ------------