Support for DLINK DWR-921 C1

[thomasst1012]

Hello,

can you add support for https://openwrt.org/toh/d-link/dwr-921 Rev C1? That would be very nice :)

Thank you, Greetings, Thomas

P.S. I've already donated something.

[4IceG]

Hi, Thanks for your support 👍🏻, a nice gesture for a good start the week :).

We can try to add modem support, the question is whether the modem will be willing to cooperate.

Show command result (let's see what kind of modem it is) cat /sys/kernel/debug/usb/devices

Have you tried to communicate with modem using the at or qmi commands?

Greetings, Rafał

[thomasst1012]

Hi,

in the Attachment i have exported the usb devices

usb devices .txt

Communication via qmi is possible: qmi commands.txt

does that help you?

Greetings, Thomas

[4IceG]

does that help you?

The more we know, the greater chance of adding support. Currently 3ginfo-lite doesn't read data from qmi, so I would have to add this.

Question is if the modem has any ttyUSB port for communication. @thomasst1012 Could you show also

ls -al /dev/*

[thomasst1012]

@4IceG - Here is the Output:

root@atnr-dlink:~# ls -al /dev/* crw------- 1 root root 180, 176 May 5 15:37 /dev/cdc-wdm0 crw------- 1 root root 5, 1 Jan 1 1970 /dev/console lrwxrwxrwx 1 root root 13 Jan 1 1970 /dev/fd -> /proc/self/fd crw-rw-rw- 1 root root 1, 7 Jan 1 1970 /dev/full crw------- 1 root root 254, 0 Jan 1 1970 /dev/gpiochip0 crw------- 1 root root 254, 1 Jan 1 1970 /dev/gpiochip1 crw------- 1 root root 254, 2 Jan 1 1970 /dev/gpiochip2 crw------- 1 root root 254, 3 Jan 1 1970 /dev/gpiochip3 crw------- 1 root root 10, 183 Jan 1 1970 /dev/hwrng crw------- 1 root root 1, 11 Jan 1 1970 /dev/kmsg srw-rw-rw- 1 root root 0 May 5 15:37 /dev/log crw------- 1 root root 90, 0 Jan 1 1970 /dev/mtd0 crw------- 1 root root 90, 1 Jan 1 1970 /dev/mtd0ro crw------- 1 root root 90, 2 Jan 1 1970 /dev/mtd1 crw------- 1 root root 90, 3 Jan 1 1970 /dev/mtd1ro crw------- 1 root root 90, 4 Jan 1 1970 /dev/mtd2 crw------- 1 root root 90, 5 Jan 1 1970 /dev/mtd2ro crw------- 1 root root 90, 6 Jan 1 1970 /dev/mtd3 crw------- 1 root root 90, 7 Jan 1 1970 /dev/mtd3ro crw------- 1 root root 90, 8 Jan 1 1970 /dev/mtd4 crw------- 1 root root 90, 9 Jan 1 1970 /dev/mtd4ro crw------- 1 root root 90, 10 Jan 1 1970 /dev/mtd5 crw------- 1 root root 90, 11 Jan 1 1970 /dev/mtd5ro brw------- 1 root root 31, 0 Jan 1 1970 /dev/mtdblock0 brw------- 1 root root 31, 1 Jan 1 1970 /dev/mtdblock1 brw------- 1 root root 31, 2 Jan 1 1970 /dev/mtdblock2 brw------- 1 root root 31, 3 Jan 1 1970 /dev/mtdblock3 brw------- 1 root root 31, 4 Jan 1 1970 /dev/mtdblock4 brw------- 1 root root 31, 5 Jan 1 1970 /dev/mtdblock5 crw-rw-rw- 1 root root 1, 3 Jan 1 1970 /dev/null crw------- 1 root root 1, 4 Jan 1 1970 /dev/port crw------- 1 root root 108, 0 May 5 15:37 /dev/ppp crw-rw-rw- 1 root root 5, 2 May 6 09:55 /dev/ptmx crw-rw-rw- 1 root root 1, 8 Jan 1 1970 /dev/random lrwxrwxrwx 1 root root 8 Jan 1 1970 /dev/shm -> /tmp/shm lrwxrwxrwx 1 root root 15 Jan 1 1970 /dev/stderr -> /proc/self/fd/2 lrwxrwxrwx 1 root root 15 Jan 1 1970 /dev/stdin -> /proc/self/fd/0 lrwxrwxrwx 1 root root 15 Jan 1 1970 /dev/stdout -> /proc/self/fd/1 crw-rw-rw- 1 root root 5, 0 Jan 1 1970 /dev/tty crw-rw---- 1 root dialout 4, 64 Jan 1 1970 /dev/ttyS0 crw-rw---- 1 root dialout 4, 65 Jan 1 1970 /dev/ttyS1 crw-rw---- 1 root dialout 4, 74 Jan 1 1970 /dev/ttyS10 crw-rw---- 1 root dialout 4, 75 Jan 1 1970 /dev/ttyS11 crw-rw---- 1 root dialout 4, 76 Jan 1 1970 /dev/ttyS12 crw-rw---- 1 root dialout 4, 77 Jan 1 1970 /dev/ttyS13 crw-rw---- 1 root dialout 4, 78 Jan 1 1970 /dev/ttyS14 crw-rw---- 1 root dialout 4, 79 Jan 1 1970 /dev/ttyS15 crw-rw---- 1 root dialout 4, 66 Jan 1 1970 /dev/ttyS2 crw-rw---- 1 root dialout 4, 67 Jan 1 1970 /dev/ttyS3 crw-rw---- 1 root dialout 4, 68 Jan 1 1970 /dev/ttyS4 crw-rw---- 1 root dialout 4, 69 Jan 1 1970 /dev/ttyS5 crw-rw---- 1 root dialout 4, 70 Jan 1 1970 /dev/ttyS6 crw-rw---- 1 root dialout 4, 71 Jan 1 1970 /dev/ttyS7 crw-rw---- 1 root dialout 4, 72 Jan 1 1970 /dev/ttyS8 crw-rw---- 1 root dialout 4, 73 Jan 1 1970 /dev/ttyS9 crw-rw---- 1 root dialout 188, 0 May 5 19:34 /dev/ttyUSB0 crw-rw---- 1 root dialout 188, 1 May 6 07:53 /dev/ttyUSB1 crw-rw---- 1 root dialout 188, 2 May 5 19:21 /dev/ttyUSB2 crw-rw---- 1 root dialout 188, 3 May 5 19:21 /dev/ttyUSB3 crw-rw-rw- 1 root root 1, 9 Jan 1 1970 /dev/urandom crw------- 1 root root 10, 130 Jan 1 1970 /dev/watchdog crw------- 1 root root 253, 0 Jan 1 1970 /dev/watchdog0 crw-rw-rw- 1 root root 1, 5 Jan 1 1970 /dev/zero

/dev/bus: drwxr-xr-x 3 root root 60 Jan 1 1970 . drwxr-xr-x 4 root root 1340 May 5 15:37 .. drwxr-xr-x 4 root root 80 Jan 1 1970 usb

/dev/pts: drwxr-xr-x 2 root root 0 Jan 1 1970 . drwxr-xr-x 4 root root 1340 May 5 15:37 .. crw--w--w- 1 root root 136, 0 May 6 09:55 0 c--------- 1 root root 5, 2 Jan 1 1970 ptmx

[4IceG]

@thomasst1012 Let's check if any port responds to at command (install sms-tool if you don't have it and send commands individually)

sms_tool -d /dev/ttyUSB0 at "ATI"
sms_tool -d /dev/ttyUSB1 at "ATI"
sms_tool -d /dev/ttyUSB2 at "ATI"
sms_tool -d /dev/ttyUSB3 at "ATI"

[thomasst1012]

root@atnr-dlink:~# sms_tool -d /dev/ttyUSB0 at "ATI" No response from modem. root@atnr-dlink:~# sms_tool -d /dev/ttyUSB1 at "ATI" ATI Manufacturer: BroadMobi Model: BM806C Revision: M1.2.0_E1.0.1_A1.1.8 IMEI: 358289080491316 +GCAP: +CGSM

root@atnr-dlink:~# sms_tool -d /dev/ttyUSB2 at "ATI" ATI Manufacturer: BroadMobi Model: BM806C Revision: M1.2.0_E1.0.1_A1.1.8 IMEI: 358289080491316 +GCAP: +CGSM

root@atnr-dlink:~# sms_tool -d /dev/ttyUSB3 at "ATI" No response from modem.

[4IceG]

Install the luci-app-3ginfo-lite package, we will see how much data it shows.

Super modem communicates normally via /dev/ttyUSB2 or /dev/ttyUSB1.

[thomasst1012]

[4IceG]

I thought it would be worse. Now all that remains is to fill in the missing data.

@thomasst1012 Could you show also

sms_tool -d /dev/ttyUSB1 at "AT+BMTCELLINFO"
sms_tool -d /dev/ttyUSB1 at "AT+CGMI"
sms_tool -d /dev/ttyUSB1 at "AT+CGMM"
sms_tool -d /dev/ttyUSB1 at "AT+CGMR"

[thomasst1012]

root@atnr-dlink:~# sms_tool -d /dev/ttyUSB1 at "AT+BMTCELLINFO" AT+BMTCELLINFO +BMTCELLINFO: CELL_ID:1220885,LAC_ID:65535,RSSI:62, RSRP:-84, RSRQ:-7, SINR:19.0,active band:3,active channel:0,EARFCN_DL:0,EARFCN_UL:0

root@atnr-dlink:~# sms_tool -d /dev/ttyUSB1 at "AT+CGMI" AT+CGMI BroadMobi

root@atnr-dlink:~# sms_tool -d /dev/ttyUSB1 at "AT+CGMM" AT+CGMM BM806C

root@atnr-dlink:~# sms_tool -d /dev/ttyUSB1 at "AT+CGMR" AT+CGMR M1.2.0_E1.0.1_A1.1.8

root@atnr-dlink:~#

[4IceG]

OK thanks. @thomasst1012 In the evening I will fix missing data and send to you new version for testing.

[thomasst1012]

Thank You @4IceG

[4IceG]

Hi Thomas, @thomasst1012 Install this version luci-app-3ginfo-lite_1.0.70-20240506_all.zip and check how much data it shows.

Greetings, Rafał

[4IceG]

Hi, Installation package is inside, you need to unpack the archive.

[thomasst1012]

Hei,

looks better than before :) Data Transfer was visibile before but not now. Take a look:

[4IceG]

OK, I changed these statistics. Thomas clear your browser cache.

If this doesn't improve the situation, I've made a bug somewhere and need to fix it.

[thomasst1012]

After clearing the browser cache its now OK

[4IceG]

So everything works. I also encourage to test my other packages :).

[thomasst1012]

Thank you very much Rafał

I have installed also the SMS tool. Anything more which i can use?

[4IceG]

I don't know what functionality is missing in router. I can also recommend...

For SMS (router probably also has a dedicated diode, so it may be useful) https://github.com/4IceG/luci-app-sms-tool-js

To monitor internet connection https://github.com/4IceG/luci-app-lite-watchdog

To collect basic transfer statistics https://github.com/4IceG/luci-app-easyconfig-transfer