Not working on SM-T220 connected to Raspberry Pi

[SuperCowProducts]

Describe the bug
Neither the touchpad nor the keyboard is working

To Reproduce

1. Connect Samsung T7 SSD to Raspberry Pi 5 in USB 3.0 slot (this is where my Raspberry's OS is located)
2. Use official PSU to power Raspberry Pi 5
3. Connect to VNC on some other device (this is to check if keystrokes are being registered)
4. Open USB HID Client app on SM-T220
5. Plug in USB cable
6. Click on "yes" (to accept device creation)
7. Attempt any of the following (manual/real-time keyboard/touchpad input)

Expected behavior
I was able to see my password being typed at the login screen on Raspberry Pi OS (obviously it works with a real USB keyboard)

Screenshots
N/A (please let me know if you need something specific, eg. System Logs etc.)

Device details (please complete the following information):

• Device: Samsung Galaxy A7 Lite
• OS: Android 14, crDroid 10.11 (img src: https://github.com/naz664/crDroid_gsi/releases/download/v2024.12.19/crDroid-10.11-arm64_bgN-Unofficial.img.xz)
• Soft Keyboard: Hacker's Keyboard, Gboard
• Are You Rooted? Yes
• Root Method: Magisk

Additional context
(I believe this is normal behavior that I encountered during testing)

• SM-T220 automatically reboots if I plug out the USB cable whilst using the app
• If developer options are enabled USB debugging will turn on when connecting SM-T220 to Raspberry Pi 5

USB HID Logs

Do we have root permissions?: true
Root method: MAGISK

------------------------------
character device info for: /dev/hidg0
does it exist?: true
is it visible without root?: true
permissions: 
stdout (with extra newlines): 
crw-------
1
u0_a496
u0_a496
u:object_r:device:s0:c240,c257,c512,c768

485,


0
2025-04-13
08:27
/dev/hidg0


character device info for: /dev/hidg1
does it exist?: true
is it visible without root?: true
permissions: 
stdout (with extra newlines): 
crw-------
1
u0_a496
u0_a496
u:object_r:device:s0:c240,c257,c512,c768

485,


1
2025-04-13
08:27
/dev/hidg1



------------------------------
version: 4.19.191-28086179-abT220XXS7DXF9
has ConfigFS support?: true
has ConfigFS HID function support?: true
-
relevant snippet of kernel config: 
CONFIG_USB_CONFIGFS=y
CONFIG_USB_CONFIGFS_UEVENT=y
CONFIG_USB_CONFIGFS_SERIAL=y
CONFIG_USB_CONFIGFS_ACM=y
# CONFIG_USB_CONFIGFS_OBEX is not set
# CONFIG_USB_CONFIGFS_NCM is not set
# CONFIG_USB_CONFIGFS_ECM is not set
# CONFIG_USB_CONFIGFS_ECM_SUBSET is not set
CONFIG_USB_CONFIGFS_RNDIS=y
# CONFIG_USB_CONFIGFS_EEM is not set
CONFIG_USB_CONFIGFS_MASS_STORAGE=y
# CONFIG_USB_CONFIGFS_BICR is not set
CONFIG_USB_CONFIGFS_MTK_FASTMETA=y
# CONFIG_USB_CONFIGFS_F_LB_SS is not set
CONFIG_USB_CONFIGFS_F_FS=y
CONFIG_USB_CONFIGFS_F_DM=y
# CONFIG_USB_CONFIGFS_F_ADB is not set
CONFIG_USB_CONFIGFS_F_MTP=y
CONFIG_USB_CONFIGFS_F_PTP=y
CONFIG_USB_CONFIGFS_F_CONN_GADGET=y
CONFIG_USB_CONFIGFS_F_SS_MON_GADGET=y
CONFIG_USB_CONFIGFS_F_ACC=y
CONFIG_USB_CONFIGFS_F_AUDIO_SRC=y
# CONFIG_USB_CONFIGFS_F_UAC1 is not set
# CONFIG_USB_CONFIGFS_F_UAC1_LEGACY is not set
# CONFIG_USB_CONFIGFS_F_UAC2 is not set
CONFIG_USB_CONFIGFS_F_MIDI=y
CONFIG_USB_CONFIGFS_F_HID=y
CONFIG_USB_CONFIGFS_F_UVC=y
# CONFIG_USB_CONFIGFS_F_PRINTER is not set
# CONFIG_IIO_CONFIGFS is not set
CONFIG_CONFIGFS_FS=y


------------------------------
Logs: 
unknown_tag		INFO		Detected root method as: MAGISK
unknown_tag		INFO		Detected root method as: MAGISK
unknown_tag		INFO		Detected root method as: MAGISK
unknown_tag		INFO		Detected root method as: MAGISK
unknown_tag		INFO		Detected root method as: MAGISK
unknown_tag		INFO		Detected root method as: MAGISK

[Arian04]

Hey, I just released v3.0.0-beta, so I thought I should ping people. As explained in the release notes, I added support for some "device-specific quirks" and I also slightly modified the gadget configuration process.

Basically what I'm saying is:

1. please try out the v3.0.0-beta (following the update procedure at the top of the release notes)
2. see if there's still a problem
3. if so, then try to enable "Experimental mode", then enable the "Disable gadget functions during configuration" option that shows up underneath it, then reopen the app and try again.

At that point, if your issue is gone, please let me know, and if your issue is NOT gone, also please let me know.

These commits have fixed a few people's issues already, so I'm wondering how many other people's issues will be resolved by these changes.

Thank you!

[Arian04]

Hi! Just wondering, did you get a chance to test this out? and if so, did it work correctly? If it didn't I just released v3.0.0-beta2 with a few more fixes.

Thanks in advance!

[SuperCowProducts]

Unfortunately not! Congrats for the frequent updates though, I'm sure I'm very close to getting it work.

Here's my latest log:

debug_log_me.arianb.usb_hid_client_1750018824.txt