[Solved] Connect PPP to PC via USB for data transfer ?
#1
Hello,

The Tow-Boot mass storage flash works for me. I flashed Manjaro OS Beta 12 in the eMMC.

Now in normal use while running Manjaro OS Beta 12, I'm unable to connect my PPP to the PC via USB-C for transfer data.

On the PC, /var/log/syslog shows nothing when I connect the PPP via USB.

On the PPP, journalctl -f returns :
Code:
Sep 18 12:12:24 manjaro-arm kernel: typec-extcon typec-extcon: extcon changed sdp=1 cdp=0 dcp=0 usb=1 usb_host=0 dp=0
Sep 18 12:12:24 manjaro-arm kernel: typec-extcon typec-extcon: MUX SET: state->mode=1
Sep 18 12:12:24 manjaro-arm kernel: rk818-charger rk818-charger: applying input current limit 500 mA
Sep 18 12:12:24 manjaro-arm upowerd[3804]: energy_full (12.261780) is greater than energy_full_design (0.000000)
Sep 18 12:12:24 manjaro-arm upowerd[3804]: Setting /sys/devices/platform/ff3c0000.i2c/i2c-0/0-001c/rk818-charger/power_supply/rk818-usb state empty as unknown and very low
Sep 18 12:12:24 manjaro-arm kernel: typec-extcon typec-extcon: SW SET: orientation=1
Sep 18 12:12:24 manjaro-arm kernel: typec-extcon typec-extcon: ROLE SET: role=2
Sep 18 12:12:24 manjaro-arm kernel: typec-extcon typec-extcon: MUX SET: state->mode=1
Sep 18 12:12:25 manjaro-arm upowerd[3804]: energy_full (12.220956) is greater than energy_full_design (0.000000)
Sep 18 12:12:25 manjaro-arm upowerd[3804]: Setting /sys/devices/platform/ff3c0000.i2c/i2c-0/0-001c/rk818-charger/power_supply/rk818-usb state empty as unknown and very low
Sep 18 12:12:25 manjaro-arm kernel: rk818-charger rk818-charger: applying input current limit 500 mA
Sep 18 12:12:25 manjaro-arm kernel: typec-extcon typec-extcon: SW SET: orientation=1
Sep 18 12:12:25 manjaro-arm kernel: typec-extcon typec-extcon: ROLE SET: role=2
Sep 18 12:12:25 manjaro-arm kernel: typec-extcon typec-extcon: MUX SET: state->mode=1
Sep 18 12:12:26 manjaro-arm upowerd[3804]: energy_full (12.218040) is greater than energy_full_design (0.000000)
Sep 18 12:12:26 manjaro-arm upowerd[3804]: Setting /sys/devices/platform/ff3c0000.i2c/i2c-0/0-001c/rk818-charger/power_supply/rk818-usb state empty as unknown and very low
Sep 18 12:12:26 manjaro-arm kernel: rk818-charger rk818-charger: applying input current limit 500 mA
Sep 18 12:12:26 manjaro-arm kernel: rk818-charger rk818-charger: applying input current limit 500 mA
Sep 18 12:12:27 manjaro-arm upowerd[3804]: energy_full (12.223872) is greater than energy_full_design (0.000000)
Sep 18 12:12:27 manjaro-arm upowerd[3804]: Setting /sys/devices/platform/ff3c0000.i2c/i2c-0/0-001c/rk818-charger/power_supply/rk818-usb state empty as unknown and very low
Sep 18 12:12:28 manjaro-arm upowerd[3804]: energy_full (12.250116) is greater than energy_full_design (0.000000)
Sep 18 12:12:28 manjaro-arm upowerd[3804]: Setting /sys/devices/platform/ff3c0000.i2c/i2c-0/0-001c/rk818-charger/power_supply/rk818-usb state empty as unknown and very low
Sep 18 12:12:29 manjaro-arm upowerd[3804]: energy_full (12.250116) is greater than energy_full_design (0.000000)
Sep 18 12:12:29 manjaro-arm upowerd[3804]: Setting /sys/devices/platform/ff3c0000.i2c/i2c-0/0-001c/rk818-charger/power_supply/rk818-usb state empty as unknown and very low

The USB device only manages power.

Do you know what I have to do to activate the USB connection for data sharing ?
Thank you in advance.
  Reply
#2
I found !

Code:
$ sudo modprobe g_mass_storage file=/dev/mmcblk2
does the job ! Smile
  Reply


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