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FS#3408 - DWC2 USB errors with Huawei E3372 4G dongle running in NCM mode #8273

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openwrt-bot opened this issue Oct 26, 2020 · 0 comments
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flyspray release/19.07 pull request/issue targeted (also) for OpenWrt 19.07 release

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andyburns:

I have a BT Humehub 5A with a Huawei E3372 dongle, used purely for a backup for my VDSL connection, so only tested every few months, I noticed with 19.07.03 it wasn't working, so I upgraded to 19.07.04 and it's still not working.

It seems to initially "see" the dongle, then fail to talk to it

root@hh5a:~# dmesg|grep -i usb
[ 0.374109] usbcore: registered new interface driver usbfs
[ 0.379680] usbcore: registered new interface driver hub
[ 0.385095] usbcore: registered new device driver usb
[ 1.651958] USB_VBUS: disabling
[ 3.779353] dwc2 1e101000.usb: 1e101000.usb supply vusb_d not found, using dummy regulator
[ 3.786491] dwc2 1e101000.usb: 1e101000.usb supply vusb_a not found, using dummy regulator
[ 3.794916] dwc2 1e101000.usb: dwc2_core_reset() HANG! AHB Idle GRSTCTL=0
[ 4.001788] dwc2 1e101000.usb: DWC OTG Controller
[ 4.005122] dwc2 1e101000.usb: new USB bus registered, assigned bus number 1
[ 4.012215] dwc2 1e101000.usb: irq 62, io mem 0x1e101000
[ 4.018987] hub 1-0:1.0: USB hub found
[ 11.543311] usbcore: registered new interface driver cdc_wdm
[ 11.902165] usbcore: registered new interface driver usbserial
[ 11.906895] usbcore: registered new interface driver usbserial_generic
[ 11.913296] usbserial: USB Serial support registered for generic
[ 11.994648] usbcore: registered new interface driver cdc_ncm
[ 12.039432] usbcore: registered new interface driver huawei_cdc_ncm
[ 15.249532] usb 1-1: new high-speed USB device number 2 using dwc2
[ 16.453533] usb usb1-port1: Cannot enable. Maybe the USB cable is bad?
[ 16.645469] usb 1-1: new high-speed USB device number 3 using dwc2
[ 16.650389] dwc2 1e101000.usb: NYET/NAK/ACK/other in non-error case, 0x00000002
[ 16.657632] dwc2 1e101000.usb: NYET/NAK/ACK/other in non-error case, 0x00000002
[ 16.664934] dwc2 1e101000.usb: NYET/NAK/ACK/other in non-error case, 0x00000002
[ 16.672397] dwc2 1e101000.usb: NYET/NAK/ACK/other in non-error case, 0x00000002
[ 16.679561] dwc2 1e101000.usb: NYET/NAK/ACK/other in non-error case, 0x00000002
[ 16.686865] dwc2 1e101000.usb: NYET/NAK/ACK/other in non-error case, 0x00000002
[ 16.694339] dwc2 1e101000.usb: NYET/NAK/ACK/other in non-error case, 0x00000002
[ 16.701495] dwc2 1e101000.usb: NYET/NAK/ACK/other in non-error case, 0x00000002
[ 16.708802] dwc2 1e101000.usb: NYET/NAK/ACK/other in non-error case, 0x00000002
[ 17.366922] usbcore: registered new interface driver option
[ 17.371364] usbserial: USB Serial support registered for GSM modem (1-port)
[ 17.925693] usb usb1-port1: Cannot enable. Maybe the USB cable is bad?
[ 17.931060] usb usb1-port1: attempt power cycle

Normally it would use /dev/ttyUSB0 but as a result of the above erros, no USB tty devices exist

root@hh5a:~# ls /dev/tty*
/dev/tty /dev/ttyLTQ0

@aparcar aparcar added the release/19.07 pull request/issue targeted (also) for OpenWrt 19.07 release label Feb 22, 2022
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