usb cdc-acm.c手机ubuntu上网问题

T-Quake 2009-10-27 10:35:29

我尝试用手机连接到ubuntu然后用wvdial上网。结果在插上手机的时候，dmesg
显示:



[ 6553.476317] usb 6-3: configuration #2 chosen from 1 choice

[ 6553.483037] /build/buildd/linux-2.6.24/drivers/usb/class/cdc-acm.c: This device cannot do calls on its own. It is no modem.

[ 6553.483059] cdc_acm 6-3:2.0: ttyACM0: USB ACM device

我仔细查看了我的wvdial.conf文件



[Dialer Defaults]

Init1 = at+cgdcont=1,"IP","cmnet"

Username = any

Password = any  

Phone = *99# 

New PPPD = yes

Modem = /dev/ttyACM0

Baud = 460800

Modem Type = USB Modem

Carrier Check = no

Stupid Mode = yes

这个没问题
我google了“This device cannot do calls on its own. It is no modem.”
说是需要sudo modprobe usbserial idVendor=0x0255 idProduct=0x0002(lusub中的数据)
可是依然不行，而且那是ubunut8.04的方法。我的是ubunut9.04。
我不知道是什么问题，我查看了内核驱动cdc-acm.c文件报错的位置



switch (buffer [2]) {

                        case USB_CDC_UNION_TYPE: /* we've found it */

                                if (union_header) {

                                        dev_err(&intf->dev, "More than one "

                                                "union descriptor, "

                                                "skipping ...\n");

                                        goto next_desc;

                                }

                                union_header = (struct usb_cdc_union_desc *)

                                                        buffer;

                                break;

                        case USB_CDC_COUNTRY_TYPE: /* export through sysfs*/

                                cfd = (struct usb_cdc_country_functional_desc *)buffer;

                                break;

                        case USB_CDC_HEADER_TYPE: /* maybe check version */

                                break; /* for now we ignore it */

                        case USB_CDC_ACM_TYPE:

                                ac_management_function = buffer[3];

                                break;

                        case USB_CDC_CALL_MANAGEMENT_TYPE:

                                call_management_function = buffer[3];

                                call_interface_num = buffer[4];

                                if ((call_management_function & 3) != 3)//这段问题

                                        dev_err(&intf->dev, "This device "

                                                "cannot do calls on its own. "

                                                "It is no modem.\n");

                                break;

                        default: