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Sony foot control unit FS-85USB

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Information #

  • idVendor=054c
  • idProduct=0104

dmesg #

usb 6-1: new low-speed USB device number 12 using ohci-platform
usb 6-1: New USB device found, idVendor=054c, idProduct=0104, bcdDevice= 3.10
usb 6-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
usb 6-1: Product: ICD-FootControlUnit
usb 6-1: Manufacturer: Sony

udevadm info /dev/input/event0 #

P: /devices/platform/soc/1c1b400.usb/usb6/6-1/6-1:1.0/0003:054C:0104.0002/input/input1/event0
M: event0
R: 0
U: input
D: c 13:64
N: input/event0
L: 0
S: input/by-path/platform-1c1b400.usb-usb-0:1:1.0-event-kbd
S: input/by-id/usb-Sony_ICD-FootControlUnit-event-kbd
E: DEVPATH=/devices/platform/soc/1c1b400.usb/usb6/6-1/6-1:1.0/0003:054C:0104.0002/input/input1/event0
E: DEVNAME=/dev/input/event0
E: MAJOR=13
E: MINOR=64
E: SUBSYSTEM=input
E: USEC_INITIALIZED=83025288369
E: ID_INPUT=1
E: ID_INPUT_KEY=1
E: ID_INPUT_KEYBOARD=1
E: ID_BUS=usb
E: ID_MODEL=ICD-FootControlUnit
E: ID_MODEL_ENC=ICD-FootControlUnit
E: ID_MODEL_ID=0104
E: ID_SERIAL=Sony_ICD-FootControlUnit
E: ID_VENDOR=Sony
E: ID_VENDOR_ENC=Sony
E: ID_VENDOR_ID=054c
E: ID_REVISION=0310
E: ID_TYPE=hid
E: ID_USB_MODEL=ICD-FootControlUnit
E: ID_USB_MODEL_ENC=ICD-FootControlUnit
E: ID_USB_MODEL_ID=0104
E: ID_USB_SERIAL=Sony_ICD-FootControlUnit
E: ID_USB_VENDOR=Sony
E: ID_USB_VENDOR_ENC=Sony
E: ID_USB_VENDOR_ID=054c
E: ID_USB_REVISION=0310
E: ID_USB_TYPE=hid
E: ID_USB_INTERFACES=:030101:
E: ID_USB_INTERFACE_NUM=00
E: ID_USB_DRIVER=usbhid
E: ID_PATH=platform-1c1b400.usb-usb-0:1:1.0
E: ID_PATH_TAG=platform-1c1b400_usb-usb-0_1_1_0
E: LIBINPUT_DEVICE_GROUP=3/54c/104:usb-1c1b400.usb-1
E: DEVLINKS=/dev/input/by-path/platform-1c1b400.usb-usb-0:1:1.0-event-kbd /dev/input/by-id/usb-Sony_ICD-FootControlUnit-event-kbd
E: TAGS=:power-switch:
E: CURRENT_TAGS=:power-switch:

Keypresses #

In order to see wicht keypresses the pedal emulates we can use:

sudo showkey

Pressing leftside of the pedal:

keycode 105 press
keycode 105 release

Pressing center of the pedal:

keycode 106 press
keycode 106 release

If you keep the pedal down it will spawn continuous “keycode 106 press”, and ends with “keycode 29 release” and “keycode 106 release”

Pressing right side of the pedal:

keycode  68 release
keycode  87 release

evtest #

sudo apt install evtest

Left side PRESSED:

Event: time 1733136794.861150, -------------- SYN_REPORT ------------
Event: time 1733136795.021191, type 4 (EV_MSC), code 4 (MSC_SCAN), value 700e0
Event: time 1733136795.021191, type 1 (EV_KEY), code 29 (KEY_LEFTCTRL), value 0
Event: time 1733136795.021191, type 4 (EV_MSC), code 4 (MSC_SCAN), value 70050
Event: time 1733136795.021191, type 1 (EV_KEY), code 105 (KEY_LEFT), value 0
Event: time 1733136795.021191, -------------- SYN_REPORT ------------
Event: time 1733136795.421145, type 4 (EV_MSC), code 4 (MSC_SCAN), value 700e0
Event: time 1733136795.421145, type 1 (EV_KEY), code 29 (KEY_LEFTCTRL), value 1
Event: time 1733136795.421145, type 4 (EV_MSC), code 4 (MSC_SCAN), value 70050
Event: time 1733136795.421145, type 1 (EV_KEY), code 105 (KEY_LEFT), value 1

Left side HOLD:

Event: time 1733136716.918978, -------------- SYN_REPORT ------------
Event: time 1733136717.191634, type 1 (EV_KEY), code 105 (KEY_LEFT), value 2
Event: time 1733136717.191634, -------------- SYN_REPORT ------------
Event: time 1733136717.231641, type 1 (EV_KEY), code 105 (KEY_LEFT), value 2
Event: time 1733136717.231641, -------------- SYN_REPORT ------------
Event: time 1733136717.271652, type 1 (EV_KEY), code 105 (KEY_LEFT), value 2
Event: time 1733136717.271652, -------------- SYN_REPORT ------------
Event: time 1733136717.311636, type 1 (EV_KEY), code 105 (KEY_LEFT), value 2

Middle PRESSED:

Event: time 1733136754.038112, -------------- SYN_REPORT ------------
Event: time 1733136755.062102, type 4 (EV_MSC), code 4 (MSC_SCAN), value 700e0
Event: time 1733136755.062102, type 1 (EV_KEY), code 29 (KEY_LEFTCTRL), value 1
Event: time 1733136755.062102, type 4 (EV_MSC), code 4 (MSC_SCAN), value 7004f
Event: time 1733136755.062102, type 1 (EV_KEY), code 106 (KEY_RIGHT), value 1
Event: time 1733136755.062102, -------------- SYN_REPORT ------------
Event: time 1733136755.335637, type 1 (EV_KEY), code 106 (KEY_RIGHT), value 2
Event: time 1733136755.335637, -------------- SYN_REPORT ------------
Event: time 1733136755.350090, type 4 (EV_MSC), code 4 (MSC_SCAN), value 700e0
Event: time 1733136755.350090, type 1 (EV_KEY), code 29 (KEY_LEFTCTRL), value 0
Event: time 1733136755.350090, type 4 (EV_MSC), code 4 (MSC_SCAN), value 7004f
Event: time 1733136755.350090, type 1 (EV_KEY), code 106 (KEY_RIGHT), value 0

Middle HOLD:

Event: time 1733136827.427633, -------------- SYN_REPORT ------------
Event: time 1733136827.467633, type 1 (EV_KEY), code 106 (KEY_RIGHT), value 2
Event: time 1733136827.467633, -------------- SYN_REPORT ------------
Event: time 1733136827.507633, type 1 (EV_KEY), code 106 (KEY_RIGHT), value 2
Event: time 1733136827.507633, -------------- SYN_REPORT ------------
Event: time 1733136827.547634, type 1 (EV_KEY), code 106 (KEY_RIGHT), value 2
Event: time 1733136827.547634, -------------- SYN_REPORT ------------
Event: time 1733136827.587633, type 1 (EV_KEY), code 106 (KEY_RIGHT), value 2
Event: time 1733136827.587633, -------------- SYN_REPORT ------------
Event: time 1733136827.627633, type 1 (EV_KEY), code 106 (KEY_RIGHT), value 2

Right PRESSED:

Event: time 1733136862.283525, -------------- SYN_REPORT ------------
Event: time 1733136864.827500, type 4 (EV_MSC), code 4 (MSC_SCAN), value 70043
Event: time 1733136864.827500, type 1 (EV_KEY), code 68 (KEY_F10), value 1
Event: time 1733136864.827500, -------------- SYN_REPORT ------------
Event: time 1733136864.835471, type 4 (EV_MSC), code 4 (MSC_SCAN), value 70043
Event: time 1733136864.835471, type 1 (EV_KEY), code 68 (KEY_F10), value 0
Event: time 1733136864.835471, -------------- SYN_REPORT ------------
Event: time 1733136865.051464, type 4 (EV_MSC), code 4 (MSC_SCAN), value 70044
Event: time 1733136865.051464, type 1 (EV_KEY), code 87 (KEY_F11), value 1
Event: time 1733136865.051464, -------------- SYN_REPORT ------------
Event: time 1733136865.059451, type 4 (EV_MSC), code 4 (MSC_SCAN), value 70044
Event: time 1733136865.059451, type 1 (EV_KEY), code 87 (KEY_F11), value 0

Readout keypressed with node-red #

With node-red we can read-out the keypressed with evtest by filtering the output:

Function node:

if (msg.payload) {
    // Splits de payload in regels
    let lines = msg.payload.split('\n');
    
    // Definieer de sleutelwoorden die je wilt detecteren
    let keysToFilter = ['(KEY_LEFT)', '(KEY_RIGHT)', '(KEY_F10)', '(KEY_F11)'];

    // Zoek naar regels met de gewenste sleutelwoorden en waarden
    for (let line of lines) {
        for (let key of keysToFilter) {
            if (line.includes(key)) {
                // Zoek de waarde (bijvoorbeeld 0, 1, 2) in de regel
                let match = line.match(/value (\d+)/);
                if (match) {
                    let value = match[1]; // Pak de waarde uit de match
                    // Stel de payload in op KEY_RIGHT_1, KEY_LEFT_0, etc.
                    msg.payload = `${key}_${value}`;
                    return msg;
                }
            }
        }
    }
}

// Retourneer niets als er geen match is
return null;

Debug output:

Example FLOW

[
    {
        "id": "ef101a8bf14c7170",
        "type": "exec",
        "z": "ee06b2afe8e78a1e",
        "command": "evtest /dev/input/event0",
        "addpay": false,
        "append": "",
        "useSpawn": "true",
        "timer": "",
        "winHide": false,
        "oldrc": false,
        "name": "",
        "x": 330,
        "y": 280,
        "wires": [
            [
                "e60ea5fbac6f1d61"
            ],
            [],
            []
        ]
    },
    {
        "id": "b3eea446bd16b143",
        "type": "inject",
        "z": "ee06b2afe8e78a1e",
        "name": "Start",
        "props": [
            {
                "p": "payload"
            },
            {
                "p": "topic",
                "vt": "str"
            }
        ],
        "repeat": "",
        "crontab": "",
        "once": true,
        "onceDelay": "5",
        "topic": "",
        "payload": "",
        "payloadType": "date",
        "x": 150,
        "y": 280,
        "wires": [
            [
                "ef101a8bf14c7170"
            ]
        ]
    },
    {
        "id": "e60ea5fbac6f1d61",
        "type": "function",
        "z": "ee06b2afe8e78a1e",
        "name": "Decode",
        "func": "if (msg.payload) {\n    // Splits de payload in regels\n    let lines = msg.payload.split('\\n');\n    \n    // Definieer de sleutelwoorden die je wilt detecteren\n    let keysToFilter = ['(KEY_LEFT)', '(KEY_RIGHT)', '(KEY_F10)', '(KEY_F11)'];\n\n    // Zoek naar regels met de gewenste sleutelwoorden en waarden\n    for (let line of lines) {\n        for (let key of keysToFilter) {\n            if (line.includes(key)) {\n                // Zoek de waarde (bijvoorbeeld 0, 1, 2) in de regel\n                let match = line.match(/value (\\d+)/);\n                if (match) {\n                    let value = match[1]; // Pak de waarde uit de match\n                    // Stel de payload in op KEY_RIGHT_1, KEY_LEFT_0, etc.\n                    msg.payload = `${key}_${value}`;\n                    return msg;\n                }\n            }\n        }\n    }\n}\n\n// Retourneer niets als er geen match is\nreturn null;",
        "outputs": 1,
        "timeout": "",
        "noerr": 0,
        "initialize": "",
        "finalize": "",
        "libs": [],
        "x": 520,
        "y": 280,
        "wires": [
            [
                "9a16335bdbe14406"
            ]
        ]
    },
    {
        "id": "9a16335bdbe14406",
        "type": "debug",
        "z": "ee06b2afe8e78a1e",
        "name": "Debug OUTPUT",
        "active": true,
        "tosidebar": true,
        "console": false,
        "tostatus": false,
        "complete": "payload",
        "targetType": "msg",
        "statusVal": "",
        "statusType": "auto",
        "x": 680,
        "y": 280,
        "wires": []
    }
]