I have an Odroid M1 with all USB ports in use. One of them is the WBM-5BK Odroid Wifi/BT adapter (usb 1-1), a ConbeeII (usb 2-1), a FT232R USB UART (usb 3-1) P1 cable and in port 4 a serial to ir cable. The first three I see in dmesg, the latter I do not see at all. Everything worked until recently (24-11 release), after that wifi is gone and the serial to ir is gone too.
in the dmesg output I get:
[ 112.686092] usb 1-1: USB disconnect, device number 2
[ 232.938710] usb 1-1: new high-speed USB device number 3 using ehci-platform
[ 233.139047] usb 1-1: New USB device found, idVendor=0bda, idProduct=c820, bcdDevice= 2.00
[ 233.139067] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 233.139073] usb 1-1: Product: 802.11ac NIC
[ 233.139079] usb 1-1: Manufacturer: Realtek
[ 233.139083] usb 1-1: SerialNumber: 123456
[ 234.459236] usb 1-1: USB disconnect, device number 3
[ 243.527026] usb 3-1: new full-speed USB device number 2 using ohci-platform
[ 243.829100] usb 3-1: New USB device found, idVendor=0403, idProduct=6001, bcdDevice= 6.00
[ 243.829121] usb 3-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 243.829128] usb 3-1: Product: FT232R USB UART
[ 243.829132] usb 3-1: Manufacturer: FTDI
[ 243.829137] usb 3-1: SerialNumber: AB6XTDJK
[ 243.865793] usbcore: registered new interface driver ftdi_sio
[ 243.865885] usbserial: USB Serial support registered for FTDI USB Serial Device
[ 243.866271] usb 3-1: Detected FT232R
[ 243.873666] usb 3-1: FTDI USB Serial Device converter now attached to ttyUSB0
so I see the wifi dongle is disconnected, but why?
I did see https://www.reddit.com/r/linux/comments/t7pxpk/are_all_of_your_usb_devices_disconnecting/ and indeed, the value is 2, however the remediation is not possible:
➜ cat /sys/module/usbcore/parameters/autosuspend
2
➜echo -1 > /sys/module/usbcore/parameters/autosuspend
zsh: read-only file system: /sys/module/usbcore/parameters/autosuspend
more examination shows:
[ 232.938710] usb 1-1: new high-speed USB device number 3 using ehci-platform
[ 233.139047] usb 1-1: New USB device found, idVendor=0bda, idProduct=c820, bcdDevice= 2.00
[ 233.139067] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 233.139073] usb 1-1: Product: 802.11ac NIC
[ 233.139079] usb 1-1: Manufacturer: Realtek
[ 233.139083] usb 1-1: SerialNumber: 123456
[ 233.147739] RTW: [HALMAC]55772M
[ 233.147739] HALMAC_MAJOR_VER = 1
[ 233.147739] HALMAC_PROTOTYPE_VER = 6
[ 233.147739] HALMAC_MINOR_VER = 6
[ 233.147739] HALMAC_PATCH_VER = 22
[ 233.148031] Bluetooth: hci0: RTL: examining hci_ver=08 hci_rev=000c lmp_ver=08 lmp_subver=8821
[ 233.148881] Bluetooth: hci0: RTL: rom_version status=0 version=1
[ 233.148922] Bluetooth: hci0: RTL: loading rtl_bt/rtl8821c_fw.bin
[ 233.149973] Bluetooth: hci0: RTL: loading rtl_bt/rtl8821c_config.bin
[ 233.150337] Bluetooth: hci0: RTL: cfg_sz 10, total sz 34926
[ 234.455904] RTW: HW EFUSE
[ 234.455937] RTW: 0x000: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
[ 234.455981] RTW: 0x010: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
[ 234.456028] RTW: 0x020: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
[ 234.456069] RTW: 0x030: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
[ 234.456109] RTW: 0x040: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
[ 234.456154] RTW: 0x050: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
[ 234.456194] RTW: 0x060: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
[ 234.456233] RTW: 0x070: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
[ 234.456287] RTW: 0x080: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
[ 234.456327] RTW: 0x090: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
[ 234.456368] RTW: 0x0A0: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
[ 234.456414] RTW: 0x0B0: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
[ 234.456597] RTW: 0x0C0: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
[ 234.456639] RTW: 0x0D0: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
[ 234.456686] RTW: 0x0E0: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
[ 234.456726] RTW: 0x0F0: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
[ 234.456765] RTW: 0x100: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
[ 234.456928] RTW: 0x110: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
[ 234.456970] RTW: 0x120: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
[ 234.457010] RTW: 0x130: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
[ 234.457055] RTW: 0x140: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
[ 234.457096] RTW: 0x150: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
[ 234.457138] RTW: 0x160: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
[ 234.457192] RTW: 0x170: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
[ 234.457235] RTW: 0x180: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
[ 234.457499] RTW: 0x190: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
[ 234.457550] RTW: 0x1A0: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
[ 234.457592] RTW: 0x1B0: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
[ 234.457780] RTW: 0x1C0: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
[ 234.457824] RTW: 0x1D0: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
[ 234.458034] RTW: 0x1E0: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
[ 234.458081] RTW: 0x1F0: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
[ 234.458126] RTW: hal_com_config_channel_plan use def_chplan:0x7F
[ 234.459236] usb 1-1: USB disconnect, device number 3
[ 234.462037] Bluetooth: hci0: RTL: download fw command failed (-19)
running:
- Core 2025.1.4
- Supervisor 2024.12.3
- Operating System 14.2
- Frontend 20250109.2
any suggestions?
