original kernel: 4.15.0
target kernel: 4.15.18
option.c (using 5.15.133 to modify)
static int option_attach(struct usb_serial *serial)
{
/* Retrieve device flags stored at probe. */
device_flags = (unsigned long)usb_get_serial_data(serial);
iface_desc = &serial->interface->cur_altsetting->desc;
if (!iface_no_modem_control(device_flags, iface_desc->bInterfaceNumber))
data->use_send_setup = 1;
//if (device_flags & ZLP)
// data->use_zlp = 1;
spin_lock_init(&data->susp_lock);
usb_set_serial_data(serial, data);
return 0;
}
1. 這樣應該就有/dev/ttyUSB*2. LN920會被自已切到MBIM (PID:1061)
3. Modem manager或用mbim指令可以連上網
沒有留言:
張貼留言