Hi, I am trying to make a buildroot system for the cubox-M we bought. I based my work on: https://github.com/SolidRun/imx8mp_build . I am trying to connect a touch screen to the Cubox-M. The information for my touch screen are: Product: MTouch Manufacturer: TSTP SerialNumber: CMTP_1.0 idVendo…

it is possible this is due to the kernel usb autosuspend code. Can you please test by adding usbcore.autosuspend=-1 to your kernel commandline? Thanks.

Hi, Thanks for the reply. I tested to change usb autosuspend in the bootargs as you adviced. I also tested by changing this in the linux defconfig. Nevertheless, none of this tests was successful.

Of course: [ 0.000000] Booting Linux on physical CPU 0x0000000000 [0x410fd034] [ 0.000000] Linux version 5.4.70 (tom@tom-ThinkPad-T490s) (gcc version 10.2.0 (Buildroot 2020.11.2)) #1 SMP PREEMPT Wed Oct 19 15:30:35 CEST 2022 [ 0.000000] Machine model: NXP i.MX8MPlus SolidRun board [ 0.0…

[ 1.725412] sdhci-pltfm: SDHCI platform and OF driver helper [ 1.731887] mmc0: CQHCI version 5.10 [ 1.735917] mmc1: CQHCI version 5.10 [ 1.739951] mmc2: CQHCI version 5.10 [ 1.775428] mmc2: SDHCI controller on 30b60000.mmc [30b60000.mmc] using ADMA [ 1.785133] ledtrig-cpu: register…

dmesg: # dmesg -w [ 0.000000] Booting Linux on physical CPU 0x0000000000 [0x410fd034] [ 0.000000] Linux version 5.4.70 (tom@tom-ThinkPad-T490s) (gcc version 10.2.0 (Buildroot 2020.11.2)) #1 SMP PREEMPT Wed Oct 19 15:30:35 CEST 2022 [ 0.000000] Machine model: NXP i.MX8MPlus SolidRun board […

[ 2.157189] Bluetooth: RFCOMM TTY layer initialized [ 2.162089] Bluetooth: RFCOMM socket layer initialized [ 2.167266] Bluetooth: RFCOMM ver 1.11 [ 2.171036] Bluetooth: BNEP (Ethernet Emulation) ver 1.3 [ 2.176362] Bluetooth: BNEP filters: protocol multicast [ 2.181606] Bluetooth: …

# dmesg -w [ 0.000000] Booting Linux on physical CPU 0x0000000000 [0x410fd034] [ 0.000000] Linux version 5.4.70 (tom@tom-ThinkPad-T490s) (gcc version 10.2.0 (Buildroot 2020.11.2)) #1 SMP PREEMPT Wed Oct 19 15:30:35 CEST 2022 [ 0.000000] Machine model: NXP i.MX8MPlus SolidRun board [ 0.00…

oh, this is running the 5.4 kernel. Which image are you using for testing? The latest kernel release is 5.10 LTS

Disconnection of USB port for a touch screen on cubox-m with buildroot system

NXP i.MX8M Plus

jnettlet October 19, 2022, 10:21am 4

Could you post the full output of dmesg so I can look at the full kernel boot and enumeration?

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Disconnection of USB port for a touch screen on cubox-m with buildroot system

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