umtprd.conf loop_on_disconnect is not triggered

[chcmq]

#
# uMTP Responder config file
# Must be copied to /etc/umtprd/umtprd.conf
#

# Loop / daemon mode
# Set to 1 to don't shutdown uMTPrd when the link is disconnected.

loop_on_disconnect 0

# Force the default UID/GID to use for each storage file operations.
# Note : When no default UID/GID are specified the umtprd process UID/GID 
#        are used instead.

#default_uid 33
#default_gid 33

# Storage command : Create add a storage entry point. Up to 16 entry points supported
# Syntax : storage "PATH" "NAME" "OPTIONS" 
# Possible store options :
#     "rw" = read/write access
#     "ro" = read only
#     "notmounted" = not mounted by default
#     "locked" = lock/unlock feature enabled

storage "/tmp/disk/userdata/storage"      "storage" "rw"

# Add the "locked" option to enable the store lock/unlock feature.
# Execute "umtprd -cmd:unlock" to unlock the locked stores and "umtprd -cmd:lock" to lock them again.

storage "/tmp/disk/userdata/storage"      "lockable storage" "rw,locked"

# A user storage using another UID/GID for file operations.

#storage "/home/user" "user folder" "rw,locked,uid=33,gid=33"

#
# Uncomment the following line if you want to 
# override the system default umask value for 
# the uploaded files.
#

#umask 022

# Set the USB manufacturer string

#manufacturer "Viveris Technologies"

# Set the USB Product string

#product "Viveris Technologies"

# Set the USB Serial number string

#serial "01234567"

# Set the MTP firmware version

firmware_version "Rev A"

# Set the USB interface string. Should be always "MTP"

interface "MTP"

# Set the USB Vendor ID, Product ID and class

#usb_vendor_id  0x1D6B # Linux Foundation
#usb_product_id 0x0100 # PTP Gadget
#usb_class 0x6         # Image
#usb_subclass 0x1      # Still Imaging device
#usb_protocol 0x1      #

# Device version

usb_dev_version 0x3008

# inotify support
# If you want disable the events support (beta), uncomment the following line :

# no_inotify 0x1

#
# Internal buffers size
#

# Internal default usb_max_rd_buffer_size and usb_max_wr_buffer_size value set to 0x10000.
# Internal default read_buffer_cache_size value set to 0x100000.
# Uncomment the following lines to reduce the buffers sizes to fix USB issues on iMX6 based systems.

#usb_max_rd_buffer_size 0x8000      # MAX usb read size. Must be a multiple of 512 and be less than read_buffer_cache_size
#usb_max_wr_buffer_size 0x8000      # MAX usb write size. Must be a multiple of 512.
#read_buffer_cache_size 0x20000     # Read file cache buffer. Must be a 2^x value.

#
# USB gadget device driver path
#

########################################################################
#
# -- Generic FunctionFS Mode --
#
########################################################################

usb_functionfs_mode 0x1

usb_dev_path   "/dev/ffs-mtp/ep0"
usb_epin_path  "/dev/ffs-mtp/ep1"
usb_epout_path "/dev/ffs-mtp/ep2"
usb_epint_path "/dev/ffs-mtp/ep3"

usb_max_packet_size 0x200

########################################################################
#
# -- GadgetFS Mode : Atmel Sama5D2Xplained board --
#
########################################################################

#usb_functionfs_mode 0x0

#usb_dev_path   "/dev/gadget/atmel_usba_udc"
#usb_epin_path  "/dev/gadget/ep1"
#usb_epout_path "/dev/gadget/ep2"
#usb_epint_path "/dev/gadget/ep3"

# Max USB packet size

#usb_max_packet_size 0x200

########################################################################
#
# -- GadgetFS Mode : Raspberry PI Zero / Raspberry PI Zero W Boards --
#
########################################################################

#usb_functionfs_mode 0x0

#usb_dev_path   "/dev/gadget/20980000.usb"
#usb_epin_path  "/dev/gadget/ep1in"
#usb_epout_path "/dev/gadget/ep2out"
#usb_epint_path "/dev/gadget/ep3in"

# Max USB packet size

#usb_max_packet_size 0x200

When I uninstalled the device, it automatically connected again. As a result, I could not uninstall the device normally and could only disconnect my OTG cable.


[uMTPrd - 11:26:18 - Info] uMTP Responder
[uMTPrd - 11:26:18 - Info] Version: v1.6.2 compiled the Oct 14 2023@21:25:51
[uMTPrd - 11:26:18 - Info] (c) 2018 - 2021 Viveris Technologies
[uMTPrd - 11:26:18 - Info] Add storage storage - Root Path: /tmp/disk/userdata/storage - UID: -1 - GID: -1 - Flags: 0x00000000
[uMTPrd - 11:26:18 - Info] Add storage lockable storage - Root Path: /tmp/disk/userdata/storage - UID: -1 - GID: -1 - Flags: 0x00000018
[uMTPrd - 11:26:18 - Info] USB Device path : /dev/ffs-mtp/ep0
[uMTPrd - 11:26:18 - Info] USB In End point path : /dev/ffs-mtp/ep1
[uMTPrd - 11:26:18 - Info] USB Out End point path : /dev/ffs-mtp/ep2
[uMTPrd - 11:26:18 - Info] USB Event End point path : /dev/ffs-mtp/ep3
[uMTPrd - 11:26:18 - Info] USB Max packet size : 0x200 bytes
[uMTPrd - 11:26:18 - Info] USB Max write buffer size : 0x2000 bytes
[uMTPrd - 11:26:18 - Info] USB Max read buffer size : 0x2000 bytes
[uMTPrd - 11:26:18 - Info] Read file buffer size : 0x100000 bytes
[uMTPrd - 11:26:18 - Info] Manufacturer string : Viveris Technologies
[uMTPrd - 11:26:18 - Info] Product string : The Viveris Product !
[uMTPrd - 11:26:18 - Info] Serial string : 01234567
[uMTPrd - 11:26:18 - Info] Firmware Version string : Rev A
[uMTPrd - 11:26:18 - Info] Interface string : MTP
[uMTPrd - 11:26:18 - Info] USB Vendor ID : 0x1D6B
[uMTPrd - 11:26:18 - Info] USB Product ID : 0x0100
[uMTPrd - 11:26:18 - Info] USB class ID : 0x06
[uMTPrd - 11:26:18 - Info] USB subclass ID : 0x01
[uMTPrd - 11:26:18 - Info] USB Protocol ID : 0x01
[uMTPrd - 11:26:18 - Info] USB Device version : 0x3008
[uMTPrd - 11:26:18 - Info] USB FunctionFS Mode
[uMTPrd - 11:26:18 - Info] Wait for connection : 1
[uMTPrd - 11:26:18 - Info] Loop on disconnect : 0
[uMTPrd - 11:26:18 - Info] Show hidden files : 1
[uMTPrd - 11:26:18 - Info] File creation umask : System default umask
[uMTPrd - 11:26:18 - Info] Default UID : 0
[uMTPrd - 11:26:18 - Info] Default GID : 0
[uMTPrd - 11:26:18 - Info] inotify : yes
[uMTPrd - 11:26:44 - Error] incoming_packet : Read Error (-1)!
[uMTPrd - 11:27:24 - Error] incoming_packet : Read Error (-1)!
[uMTPrd - 11:28:31 - Error] incoming_packet : Read Error (-1)!
[uMTPrd - 11:28:41 - Error] incoming_packet : Read Error (-1)!

When I unmount the USB device, [uMTPrd - 11:28:41 - Error] incoming_packet: Read Error (-1)!