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Documentation/sim: add cdcmbim examples

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We can send and receive data through device files
nuttx: /dev/cdc-wdm2
linux: /dev/cdc-wdm1
The number suffix depends on the actual situation.

And send and receive messages through network cards.

Signed-off-by: zhanghongyu <zhanghongyu@xiaomi.com>
This commit is contained in:
zhanghongyu 2024-08-22 20:33:21 +08:00 committed by Alan Carvalho de Assis
parent f55270f15b
commit 355742bd9b
1 changed files with 41 additions and 0 deletions
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41
Documentation/platforms/sim/sim/boards/sim/index.rst
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@ -1669,6 +1669,7 @@ This is a configuration with sim usbdev support.
conn0: adb & rndis
conn1: cdcacm & cdcecm
conn2: cdcncm
conn3: cdcmbim
You can use the sim:usbdev configuration::
@ -1801,6 +1802,46 @@ This is a configuration with sim usbdev support.
Then you can test the network connection using the ping command or telnet.
6> Run CDCMBIM:
NuttX enter command::
$ conn 3
$ ifconfig
eth0 Link encap:Ethernet HWaddr 42:67:c6:69:73:51 at RUNNING mtu 1500
inet addr:10.0.1.2 DRaddr:10.0.1.1 Mask:255.255.255.0
wwan0 Link encap:UNSPEC at RUNNING mtu 1200
inet addr:0.0.0.0 DRaddr:0.0.0.0 Mask:0.0.0.0
$ ifconfig wwan0 10.0.0.1 netmask 255.255.255.0
$ ifconfig
eth0 Link encap:Ethernet HWaddr 42:67:c6:69:73:51 at RUNNING mtu 1500
inet addr:10.0.1.2 DRaddr:10.0.1.1 Mask:255.255.255.0
wwan0 Link encap:UNSPEC at RUNNING mtu 1200
inet addr:10.0.0.1 DRaddr:10.0.0.1 Mask:255.255.255.0
$ echo -n "hello from nuttx" > /dev/cdc-wdm2
$ cat /dev/cdc-wdm2
hello from linux
Host PC, you can see the network device named wwx020000112233::
$ sudo ifconfig wwx020000112233
$ sudo ifconfig wwx020000112233 10.0.0.2 netmask 255.255.255.0
$ ifconfig
wwx020000112233: flags=4226<BROADCAST,NOARP,MULTICAST> mtu 1500
inet 10.0.0.2 netmask 255.255.255.0 broadcast 10.0.0.255
ether 02:00:00:11:22:33 txqueuelen 1000 (以太网)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 58 bytes 9143 (9.1 KB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
$ sudo cat /dev/cdc-wdm1
hello from nuttx
$ sudo bash -c "echo -n hello from linux > /dev/cdc-wdm1"
Then you can test the network connection using the ping command or telnet.
usbhost
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