하드웨어/VR2026. 2. 9. 10:01

ubuntu 22.04

 

$ sudo dmesg -w
[429483.403850] usb 1-3.4-port1: disabled by hub (EMI?), re-enabling...
[429483.404173] usb 1-3.4.1: USB disconnect, device number 44
[429483.404685] cp210x ttyUSB0: cp210x converter now disconnected from ttyUSB0
[429483.404757] cp210x 1-3.4.1:1.0: device disconnected
[429483.578220] usb 1-3.4.1: new full-speed USB device number 46 using xhci_hcd
[429483.656629] usb 1-3.4.1: New USB device found, idVendor=10c4, idProduct=ea60, bcdDevice= 1.00
[429483.656648] usb 1-3.4.1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[429483.656656] usb 1-3.4.1: Product: CP2102 USB to UART Bridge Controller
[429483.656661] usb 1-3.4.1: Manufacturer: Silicon Labs
[429483.656666] usb 1-3.4.1: SerialNumber: 0001
[429483.663687] cp210x 1-3.4.1:1.0: cp210x converter detected
[429483.666965] usb 1-3.4.1: cp210x converter now attached to ttyUSB0
[429719.385503] usb 1-1: new high-speed USB device number 47 using xhci_hcd
[429719.513887] usb 1-1: New USB device found, idVendor=04b4, idProduct=6572, bcdDevice=32.99
[429719.513893] usb 1-1: New USB device strings: Mfr=0, Product=1, SerialNumber=0
[429719.513895] usb 1-1: Product: USB2.0 Hub
[429719.515462] hub 1-1:1.0: USB hub found
[429719.515772] hub 1-1:1.0: 4 ports detected
[429719.792609] usb 1-1.4: new low-speed USB device number 48 using xhci_hcd
[429719.877250] usb 1-1.4: No LPM exit latency info found, disabling LPM.
[429719.898099] usb 1-1.4: New USB device found, idVendor=1f29, idProduct=0000, bcdDevice= 0.00
[429719.898119] usb 1-1.4: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[429719.898126] usb 1-1.4: Product: USB Type-C Digital AV Adapter
[429719.898131] usb 1-1.4: Manufacturer: Analogix
[429719.898136] usb 1-1.4: SerialNumber: 201501ANX001
[429720.376725] usb 1-1.1: new full-speed USB device number 49 using xhci_hcd
[429720.456839] usb 1-1.1: New USB device found, idVendor=2d40, idProduct=0012, bcdDevice= 1.10
[429720.456859] usb 1-1.1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[429720.456867] usb 1-1.1: Product: Pico REAL Plus
[429720.456873] usb 1-1.1: Manufacturer: Pico Technology Co.Ltd.
[429720.456878] usb 1-1.1: SerialNumber: A3770
[429720.469148] hid-generic 0003:2D40:0012.0008: hiddev1,hidraw7: USB HID v1.11 Device [Pico Technology Co.Ltd. Pico REAL Plus] on usb-0000:00:14.0-1.1/input0
[429720.472384] input: Pico Technology Co.Ltd. Pico REAL Plus as /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.1/1-1.1:1.1/0003:2D40:0012.0009/input/input27
[429720.473108] hid-multitouch 0003:2D40:0012.0009: input,hiddev2,hidraw8: USB HID v1.11 Mouse [Pico Technology Co.Ltd. Pico REAL Plus] on usb-0000:00:14.0-1.1/input1
[429722.681526] usb 1-1.3: new full-speed USB device number 50 using xhci_hcd
[429722.770007] usb 1-1.3: New USB device found, idVendor=0d8c, idProduct=0022, bcdDevice= 1.06
[429722.770034] usb 1-1.3: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[429722.770046] usb 1-1.3: Product: USB Advanced Audio Device
[429722.770055] usb 1-1.3: Manufacturer: C-Media Electronics Inc.
[429722.806106] input: C-Media Electronics Inc. USB Advanced Audio Device as /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.3/1-1.3:1.2/0003:0D8C:0022.000A/input/input28
[429722.806321] cm6533_jd 0003:0D8C:0022.000A: input,hiddev3,hidraw9: USB HID v1.11 Device [C-Media Electronics Inc. USB Advanced Audio Device] on usb-0000:00:14.0-1.3/input2
[429722.850036] usbcore: registered new interface driver snd-usb-audio

 

$ lsusb -t -v
/:  Bus 01.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/12p, 480M
    ID 1d6b:0002 Linux Foundation 2.0 root hub
    |__ Port 1: Dev 47, If 0, Class=Hub, Driver=hub/4p, 480M
        ID 04b4:6572 Cypress Semiconductor Corp. Unprogrammed CY7C65642 hub
        |__ Port 3: Dev 50, If 1, Class=Audio, Driver=snd-usb-audio, 12M
            ID 0d8c:0022 C-Media Electronics, Inc. 
        |__ Port 3: Dev 50, If 2, Class=Human Interface Device, Driver=usbhid, 12M
            ID 0d8c:0022 C-Media Electronics, Inc. 
        |__ Port 3: Dev 50, If 0, Class=Audio, Driver=snd-usb-audio, 12M
            ID 0d8c:0022 C-Media Electronics, Inc. 
        |__ Port 1: Dev 49, If 0, Class=Human Interface Device, Driver=usbhid, 12M
            ID 2d40:0012  
        |__ Port 1: Dev 49, If 1, Class=Human Interface Device, Driver=usbhid, 12M
            ID 2d40:0012  
        |__ Port 4: Dev 48, If 0, Class=, Driver=, 1.5M
            ID 1f29:0000  

 

 

얘는 이렇게 돌려야 하네

 

+

장치는 /sys/class/drm/card1-DP-1 으로 연결된것 같고

$ udevadm monitor
KERNEL[86775.653367] change   /devices/platform/USBC000:00/typec/port0 (typec)
KERNEL[86775.653406] add      /devices/platform/USBC000:00/typec/port0/port0-partner (typec)
KERNEL[86775.653422] change   /devices/platform/USBC000:00/typec/port0 (typec)
KERNEL[86775.653458] change   /devices/platform/USBC000:00/power_supply/ucsi-source-psy-USBC000:001 (power_supply)
UDEV  [86775.655223] change   /devices/platform/USBC000:00/typec/port0 (typec)
UDEV  [86775.655799] change   /devices/platform/USBC000:00/power_supply/ucsi-source-psy-USBC000:001 (power_supply)
UDEV  [86775.656388] add      /devices/platform/USBC000:00/typec/port0/port0-partner (typec)
UDEV  [86775.657088] change   /devices/platform/USBC000:00/typec/port0 (typec)
KERNEL[86775.917329] change   /devices/pci0000:00/0000:00:02.0/drm/card1 (drm)
UDEV  [86775.934553] change   /devices/pci0000:00/0000:00:02.0/drm/card1 (drm)
KERNEL[86776.078811] add      /devices/pci0000:00/0000:00:14.0/usb1/1-1 (usb)
KERNEL[86776.080126] change   /devices/pci0000:00/0000:00:14.0/usb1/1-1 (usb)
KERNEL[86776.080259] add      /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1:1.0 (usb)
KERNEL[86776.083727] bind     /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1:1.0 (usb)
KERNEL[86776.083776] bind     /devices/pci0000:00/0000:00:14.0/usb1/1-1 (usb)
UDEV  [86776.089202] add      /devices/pci0000:00/0000:00:14.0/usb1/1-1 (usb)
UDEV  [86776.095977] change   /devices/pci0000:00/0000:00:14.0/usb1/1-1 (usb)
UDEV  [86776.101407] add      /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1:1.0 (usb)
UDEV  [86776.107090] bind     /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1:1.0 (usb)
UDEV  [86776.112352] bind     /devices/pci0000:00/0000:00:14.0/usb1/1-1 (usb)
KERNEL[86776.481217] add      /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.4 (usb)
KERNEL[86776.488080] add      /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.4/1-1.4:1.0 (usb)
KERNEL[86776.488249] bind     /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.4 (usb)
UDEV  [86776.510201] add      /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.4 (usb)
UDEV  [86776.530765] add      /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.4/1-1.4:1.0 (usb)
UDEV  [86776.547559] bind     /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.4 (usb)
KERNEL[86777.112843] add      /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.1 (usb)
KERNEL[86777.122202] add      /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.1/1-1.1:1.0 (usb)
KERNEL[86777.123824] add      /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.1/1-1.1:1.0/0003:2D40:0012.0012 (hid)
KERNEL[86777.124607] add      /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.1/1-1.1:1.0/usbmisc/hiddev1 (usbmisc)
KERNEL[86777.124787] add      /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.1/1-1.1:1.0/0003:2D40:0012.0012/hidraw/hidraw8 (hidraw)
KERNEL[86777.124982] bind     /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.1/1-1.1:1.0/0003:2D40:0012.0012 (hid)
KERNEL[86777.125127] bind     /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.1/1-1.1:1.0 (usb)
KERNEL[86777.125348] add      /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.1/1-1.1:1.1 (usb)
KERNEL[86777.127242] add      /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.1/1-1.1:1.1/0003:2D40:0012.0013 (hid)
KERNEL[86777.128421] add      /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.1/1-1.1:1.1/0003:2D40:0012.0013/input/input44 (input)
KERNEL[86777.128557] add      /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.1/1-1.1:1.1/0003:2D40:0012.0013/input/input44/mouse7 (input)
KERNEL[86777.128716] add      /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.1/1-1.1:1.1/0003:2D40:0012.0013/input/input44/event24 (input)
KERNEL[86777.128923] add      /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.1/1-1.1:1.1/usbmisc/hiddev2 (usbmisc)
KERNEL[86777.129082] add      /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.1/1-1.1:1.1/0003:2D40:0012.0013/hidraw/hidraw9 (hidraw)
KERNEL[86777.129201] bind     /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.1/1-1.1:1.1/0003:2D40:0012.0013 (hid)
KERNEL[86777.129314] bind     /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.1/1-1.1:1.1 (usb)
KERNEL[86777.129441] bind     /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.1 (usb)
UDEV  [86777.140516] add      /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.1 (usb)
UDEV  [86777.146266] add      /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.1/1-1.1:1.1 (usb)
UDEV  [86777.146331] add      /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.1/1-1.1:1.0 (usb)
UDEV  [86777.148839] add      /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.1/1-1.1:1.0/0003:2D40:0012.0012 (hid)
UDEV  [86777.149435] add      /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.1/1-1.1:1.1/0003:2D40:0012.0013 (hid)
UDEV  [86777.151715] add      /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.1/1-1.1:1.0/usbmisc/hiddev1 (usbmisc)
UDEV  [86777.152543] add      /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.1/1-1.1:1.1/0003:2D40:0012.0013/input/input44 (input)
UDEV  [86777.153251] add      /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.1/1-1.1:1.1/usbmisc/hiddev2 (usbmisc)
UDEV  [86777.154119] add      /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.1/1-1.1:1.0/0003:2D40:0012.0012/hidraw/hidraw8 (hidraw)
UDEV  [86777.155696] bind     /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.1/1-1.1:1.0/0003:2D40:0012.0012 (hid)
UDEV  [86777.155852] add      /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.1/1-1.1:1.1/0003:2D40:0012.0013/hidraw/hidraw9 (hidraw)
UDEV  [86777.156035] add      /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.1/1-1.1:1.1/0003:2D40:0012.0013/input/input44/mouse7 (input)
UDEV  [86777.160756] bind     /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.1/1-1.1:1.0 (usb)
UDEV  [86777.350387] add      /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.1/1-1.1:1.1/0003:2D40:0012.0013/input/input44/event24 (input)
UDEV  [86777.351709] bind     /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.1/1-1.1:1.1/0003:2D40:0012.0013 (hid)
UDEV  [86777.356634] bind     /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.1/1-1.1:1.1 (usb)
UDEV  [86777.363453] bind     /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.1 (usb)
KERNEL[86779.433596] add      /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.3 (usb)
KERNEL[86779.437884] add      /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.3/1-1.3:1.0 (usb)
KERNEL[86779.462349] add      /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.3/1-1.3:1.0/sound/card1 (sound)
KERNEL[86779.462531] add      /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.3/1-1.3:1.0/sound/card1/pcmC1D0p (sound)
KERNEL[86779.462582] add      /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.3/1-1.3:1.0/sound/card1/controlC1 (sound)
KERNEL[86779.462687] bind     /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.3/1-1.3:1.0 (usb)
KERNEL[86779.462741] add      /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.3/1-1.3:1.1 (usb)
KERNEL[86779.462800] bind     /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.3/1-1.3:1.1 (usb)
KERNEL[86779.462864] add      /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.3/1-1.3:1.2 (usb)
KERNEL[86779.465208] add      /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.3/1-1.3:1.2/0003:0D8C:0022.0014 (hid)
KERNEL[86779.465584] add      /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.3/1-1.3:1.2/0003:0D8C:0022.0014/input/input45 (input)
KERNEL[86779.465650] add      /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.3/1-1.3:1.2/0003:0D8C:0022.0014/input/input45/event25 (input)
KERNEL[86779.465768] add      /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.3/1-1.3:1.2/usbmisc/hiddev3 (usbmisc)
KERNEL[86779.465874] add      /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.3/1-1.3:1.2/0003:0D8C:0022.0014/hidraw/hidraw10 (hidraw)
KERNEL[86779.465954] bind     /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.3/1-1.3:1.2/0003:0D8C:0022.0014 (hid)
KERNEL[86779.466051] bind     /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.3/1-1.3:1.2 (usb)
KERNEL[86779.466149] bind     /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.3 (usb)
UDEV  [86779.476418] add      /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.3 (usb)
UDEV  [86779.482487] add      /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.3/1-1.3:1.1 (usb)
UDEV  [86779.482559] add      /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.3/1-1.3:1.2 (usb)
UDEV  [86779.482861] add      /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.3/1-1.3:1.0 (usb)
UDEV  [86779.485448] add      /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.3/1-1.3:1.0/sound/card1 (sound)
UDEV  [86779.485503] add      /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.3/1-1.3:1.2/0003:0D8C:0022.0014 (hid)
UDEV  [86779.489217] add      /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.3/1-1.3:1.2/0003:0D8C:0022.0014/input/input45 (input)
UDEV  [86779.489357] add      /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.3/1-1.3:1.0/sound/card1/pcmC1D0p (sound)
UDEV  [86779.489398] add      /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.3/1-1.3:1.2/usbmisc/hiddev3 (usbmisc)
KERNEL[86779.491068] change   /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.3/1-1.3:1.0/sound/card1 (sound)
UDEV  [86779.491721] bind     /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.3/1-1.3:1.1 (usb)
UDEV  [86779.492132] add      /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.3/1-1.3:1.2/0003:0D8C:0022.0014/hidraw/hidraw10 (hidraw)
UDEV  [86779.518813] add      /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.3/1-1.3:1.0/sound/card1/controlC1 (sound)
UDEV  [86779.523897] bind     /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.3/1-1.3:1.0 (usb)
UDEV  [86779.546666] add      /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.3/1-1.3:1.2/0003:0D8C:0022.0014/input/input45/event25 (input)
UDEV  [86779.548087] bind     /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.3/1-1.3:1.2/0003:0D8C:0022.0014 (hid)
UDEV  [86779.553519] bind     /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.3/1-1.3:1.2 (usb)
UDEV  [86779.561622] bind     /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.3 (usb)
UDEV  [86779.563531] change   /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.3/1-1.3:1.0/sound/card1 (sound)

 

그 안에 EDID 파일에 접근하면 i2c로 바로 받아오는 듯.

그나저나 4k(세로) 72Hz만 지원하는건가?

$ for OUT in /sys/class/drm/card*; do echo $OUT; edid-decode $OUT/edid; echo "================="; done
/sys/class/drm/card1
/sys/class/drm/card1/edid: No such file or directory
=================
/sys/class/drm/card1-DP-1
edid-decode (hex):

00 ff ff ff ff ff ff 00 4f 2e 00 72 31 d4 00 00
2a 1c 01 04 a5 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 01 01 01 01 01 01 01 01 01 01
01 01 01 01 01 01 26 ff 70 6c 80 00 a0 f0 32 02
82 00 ff ff 00 00 00 1e 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc
00 50 69 63 6f 56 52 00 00 00 00 00 00 00 00 00

----------------

Block 0, Base EDID:
  EDID Structure Version & Revision: 1.4
  Vendor & Product Identification:
    Manufacturer: SYN
    Model: 29184
    Serial Number: 54321
    Made in: week 42 of 2018
  Basic Display Parameters & Features:
    Digital display
    Bits per primary color channel: 8
    DisplayPort interface
    Image size is variable
    Gamma: 1.00
    Supported color formats: RGB 4:4:4
    First detailed timing does not include the native pixel format and preferred refresh rate
  Color Characteristics:
    Red  : 0.0000, 0.0000
    Green: 0.0000, 0.0000
    Blue : 0.0000, 0.0000
    White: 0.0000, 0.0000
  Established Timings I & II: none
  Standard Timings: none
  Detailed Timing Descriptors:
    DTD 1:  2160x3840   72.000 Hz   9:16  287.998 kHz 653.180 MHz (255 mm x 255 mm)
                 Hfront   50 Hsync   2 Hback  56 Hpol P
                 Vfront    8 Vsync   2 Vback 150 Vpol P
    Empty Descriptor
    Empty Descriptor
    Display Product Name: 'PicoVR'
Checksum: 0x00
=================

[링크 : https://bbs.archlinux.org/viewtopic.php?id=300029]

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