libmtp copy files error. Rock Pi 4.

[lasdasdas]

Hi,

Thank you for this project! I am currently trying to use it in a Rock Pi 4. First of all I had to do some kernel tweaking but FunctionFS is working with the rockchip-dwc3 / dwc3 drivers.

UBUNTU host

Now I have two problems. The first one is that when copying files into the device from an Ubuntu computer I am unable to do so. I will attach the umtpmd log with verbose output first:
log.txt

On the host side, the libmtp errors I get:

e@e:~$ mtp-sendfile testsend /
libmtp version: 1.1.13
Device 0 (VID=1d6b and PID=0100) is UNKNOWN in libmtp v1.1.13.
Please report this VID/PID and the device model to the libmtp development team
Android device detected, assigning default bug flags
Sending testsend to /
type: , 44
Sending file...
Progress: 29 of 29 (100%)
Error sending file.
Error 2: PTP Layer error 2002: get_suggested_storage_id(): could not get storage id from parent id.
Error 2: Error 2002: PTP General Error
Error 2: PTP Layer error 02ff: add_object_to_cache(): couldn't add object to cache
Error 2: Error 02ff: PTP I/O Error
Error 1: LIBMTP_Send_File_From_File_Descriptor(): Could not retrieve updated metadata.
ERROR: Could not close session!

Mind you this was compiled using the SS_SUPPORT flags. The rest of the operations work as expected and superspeed is enabled AFAIK judging by the transfer speed and the output of:

root@rockpi4b:/home/rock/UMTP3# cat /sys/class/udc/fe800000.dwc3/maximum_speed 
super-speed

[lasdasdas]

Windows host

Everything is working perfectly however there USB superspeed is not working. Here is the log on the uMPT side.

log_windows.txt

And also the output of the device speed.

root@rockpi4b:/home/rock/UMTP3# cat /sys/class/udc/fe800000.dwc3/current_speed 
high-speed
root@rockpi4b:/home/rock/UMTP3# cat /sys/class/udc/fe800000.dwc3/maximum_speed 
super-speed

If you chose to take a look into this issue lmk if I can do anything to help troubleshooting. The demsg output does not show anything of interest and my investigations have pointed me towards a failure to respond to a MTP_OPERATION_SEND_OBJECT request on the Ubuntu case but I could not get anything else.

Thank you!