我使用這個腳本來獲取3g USB dongle的數據和控制端口。
#!/bin/sh
. /usr/share/libubox/jshn.sh
for a in `ls /sys/bus/usb/devices`; do
local vendor product
[ -z "$usb" -a -f /sys/bus/usb/devices/$a/idVendor -a -f /sys/bus/usb/devices/$a/idProduct ] || continue
vendor=$(cat /sys/bus/usb/devices/$a/idVendor)
product=$(cat /sys/bus/usb/devices/$a/idProduct)
echo Vendor $vendor, Product $product
[ -f /lib/network/wwan/$vendor:$product ] && {
usb=/lib/network/wwan/$vendor:$product
devicename=$a
echo usb: $usb devicename: $devicename
}
done
[ -n "$usb" ] && {
local old_cb control data
json_set_namespace wwan old_cb
json_init
json_load "$(cat $usb)"
echo "$(cat $usb)"
json_select
json_get_vars desc control data
json_set_namespace $old_cb
[ -n "$control" -a -n "$data" ] && {
ttys=$(ls -d /sys/bus/usb/devices/$devicename/${devicename}*/tty* | sed "s/.*\///g" | tr "\n" " ")
ctl_device=$(echo $ttys | cut -d" " -f $((control + 1)))
[ -n "$ctl_device" ] && ctl_device=/dev/$ctl_device
dat_device=$(echo $ttys | cut -d" " -f $((data + 1)))
[ -n "$dat_device" ] && dat_device=/dev/$dat_device
echo control_device: $ctl_device, data_device: $dat_device
}
}
樣本輸出:
連中興MF667
Vendor 1a40, Product 0101 #this is usb hub
Vendor 19d2, Product 0016
usb: /lib/network/wwan/19d2:0016 devicename: 1-1.2
{
"desc": "ONDA MF110/ZTE",
"control": 1,
"data": 2
}}
control_device: /dev/ttyUSB1, data_device: /dev/ttyUSB2
連接華爲E3131
Vendor 1a40, Product 0101 #this is usb hub
Vendor 12d1, Product 1506
usb: /lib/network/wwan/12d1:1506 devicename: 1-1.2
{
"desc": "Huawei E367/E398",
"control": 2,
"data": 0
}}
control_device: /dev/ttyUSB2, data_device: /dev/ttyUSB0