Hi !
My USB - C hub doesn’t accept USB devices if I put it in the back of my Zynthian RPI4. Do you know if it and hardware limitation or a software one ?
hi @Wapata
check in /boot/firmware/config.txt if
dtoverlay=dwc2,dr_mode=host # from here
(or, if you’re running a pi4)
otg_mode=1 # from here
is there
Too bad it’s already on “1”.
But thanks for he answer 
have you tried the other option ?
It looks like it’s not a powered hub that you’ve got. I’m curious: how do you power the Pi with the hub plugged in ?
I’m reading your sources right now
There is an other USB-C on the hub to put the power supply
ah, ok. Thank you.
Oh ! This line work !!
dtoverlay=dwc2,dr_mode=host
Even the Ethernet port ok my hub is working !!
(I guess the SD port too but don’t know how to check)
Merci !
cool.
just try and see if it works with command
lsblk
it will list all the attached drives
It does !
root@zynthian://zynthian# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINTS
sda 8:0 1 192K 1 disk
└─sda1 8:1 1 160.5K 1 part /media/root/LAUNCHPAD X
mmcblk0 179:0 0 59.4G 0 disk
├─mmcblk0p1 179:1 0 512M 0 part /boot/firmware
└─mmcblk0p2 179:2 0 58.9G 0 part /
root@zynthian://zynthian# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINTS
sda 8:0 1 192K 1 disk
└─sda1 8:1 1 160.5K 1 part /media/root/LAUNCHPAD X
sdb 8:16 1 14.2M 0 disk
└─sdb1 8:17 1 14.2M 0 part /media/root/sdb1-usb-Generic_STORAGE_
mmcblk0 179:0 0 59.4G 0 disk
├─mmcblk0p1 179:1 0 512M 0 part /boot/firmware
└─mmcblk0p2 179:2 0 58.9G 0 part /
The HDMI port don’t, but fair enough
I would like to say from a purely physical connector point of view, I don’t like type C.
But if you want to make a box for a Zynthian, now you can solder a jack barel to a very less expensive device, the hub instead of the rpi
your Launchpad has a small storage !
ls -la /media/root/LAUNCHPAD X
if you’re are curious and want to see what’s in there.
