Question

我有一张带有运行Linux的IMX6 CPU的物理卡（我从源代码编译的内核，来自制造商的网站）。我还有一个USB Cellular调制解调器加密狗，我想与卡一起使用。但是，当我将加密狗插入卡中时，我会在dmesg中找到它：

[   29.825491] usb 1-1: new high-speed USB device number 2 using ci_hdrc
[   29.983396] usb-storage 1-1:1.0: USB Mass Storage device detected
[   29.991796] scsi0 : usb-storage 1-1:1.0
[   30.987573] scsi 0:0:0:0: Direct-Access     ALCATEL  Mass Storage     2.31 PQ: 0 ANSI: 2
[   30.996027] scsi 0:0:0:1: CD-ROM            ALCATEL  Mass Storage     2.31 PQ: 0 ANSI: 2
[   31.008487] sd 0:0:0:0: [sda] Attached SCSI removable disk

看起来Linux正在将设备识别为大容量存储设备（它兼作存储设备），但不能作为调制解调器。当我将相同的加密狗插入常规的Ubuntu机器时，我得到了这个：

[264822.947101] usb 1-5: new high-speed USB device number 12 using ehci-pci
[264823.086874] usb 1-5: New USB device found, idVendor=1bbb, idProduct=0017
[264823.086880] usb 1-5: New USB device strings: Mfr=3, Product=2, SerialNumber=[REDACTED]
[264823.086883] usb 1-5: Product: HSPA Data Card
[264823.086886] usb 1-5: Manufacturer: USBModem
[264823.086888] usb 1-5: SerialNumber: [REDACTED]
[264823.089483] option 1-5:1.0: GSM modem (1-port) converter detected
[264823.089685] usb 1-5: GSM modem (1-port) converter now attached to ttyUSB1
[264823.089816] option 1-5:1.1: GSM modem (1-port) converter detected
[264823.090019] usb 1-5: GSM modem (1-port) converter now attached to ttyUSB2
[264823.090150] option 1-5:1.2: GSM modem (1-port) converter detected
[264823.090311] usb 1-5: GSM modem (1-port) converter now attached to ttyUSB3
[264823.090433] option 1-5:1.3: GSM modem (1-port) converter detected
[264823.090574] usb 1-5: GSM modem (1-port) converter now attached to ttyUSB4
[264823.090666] usb-storage 1-5:1.4: USB Mass Storage device detected
[264823.090916] scsi host16: usb-storage 1-5:1.4
[264823.091067] option 1-5:1.5: GSM modem (1-port) converter detected
[264823.091133] usb 1-5: GSM modem (1-port) converter now attached to ttyUSB5
[264824.089843] scsi 16:0:0:0: Direct-Access     ALCATEL  Mass Storage     2.31 PQ: 0 ANSI: 2
[264824.090238] sd 16:0:0:0: Attached scsi generic sg2 type 0
[264824.093552] sd 16:0:0:0: [sdb] Attached SCSI removable disk

通过在menuconfig中选择模块，我知道如何在外部和内核中编译模块。但是，我不知道我应该为这个设备编译哪些模块，如果它们甚至包含在内核源代码中的话。如何找到要编译的模块/驱动程序？

Answer 1

USB调制解调器通常作为大容量存储设备启动，以便安装驱动程序。

您可以使用USB_ModeSwitch等软件强制它更改模式。（这可能已经安装并在您的Ubuntu系统上运行）

如果失败，很多人会在弹出存储时切换模式（如eject所示）。

Answer 2

您可以在Ubuntu中检查相关驱动程序的sysfs属性在/ sys / bus / usb / devices /中，在板内核配置中启用该驱动程序。

交叉编译USB调制解调器的驱动程序

2 个答案: