Hello, I am trying to get USB gadget (RNDIS) working with an OMAP3EVM and a Linux Host system. I am looking for help since I have problems setting up the USB network between the target and host systems. Kernel Configuration ----------------------------- The kernel I am using is Linux-2.6.22.18. Its the release version that comes with SDK_0.9.8 for the OMAP3EVM. The default kernel configuration (omap3evm_defconfig) does not enable USB gadget functionality so I have made changes as suggested in the SDK_0.9.8 User Guide to the kernel configuration. A summary is as follows: # USB devices -CONFIG_SND_USB_AUDIO=y # USB Input Devices -CONFIG_USB_HID=y # OMAP 343x high speed USB support -CONFIG_USB_MUSB_HOST=y +CONFIG_USB_MUSB_PERIPHERAL=y -CONFIG_USB_MUSB_HDRC_HCD=y +CONFIG_USB_GADGET_MUSB_HDRC=y # USB Device Class drivers -CONFIG_USB_ACM=y -CONFIG_USB_STORAGE=y -CONFIG_USB_MON=y # USB port drivers -CONFIG_USB_TEST=y # USB Gadget Support +CONFIG_USB_GADGET=y +CONFIG_USB_GADGET_SELECTED=y +CONFIG_USB_GADGET_DUALSPEED=y +CONFIG_USB_ETH=y +CONFIG_USB_ETH_RNDIS=y Running the Test ------------------------- On the OMAP3EVM Target ####################### On successful boot with this kernel on the target board, after plugging in the USB cable, the following messages appear on the console: musb_stage2_irq 863: SUSPEND (b_idle) devctl 99 power e0 musb_stage0_irq 722: BUS RESET musb_stage0_irq 722: BUS RESET musb_stage0_irq 722: BUS RESET musb_stage0_irq 722: BUS RESET musb_stage0_irq 722: BUS RESET musb_stage0_irq 722: BUS RESET musb_stage0_irq 722: BUS RESET musb_stage0_irq 722: BUS RESET usb0: high speed config #2: 100 mA, Ethernet Gadget, using RNDIS musb_stage0_irq 722: BUS RESET musb_stage0_irq 722: BUS RESET musb_stage2_irq 863: SUSPEND (b_peripheral) devctl 99 power f0 I then setup an IP address for the usb0 interface with the following command: [root@OMAP3EVM /]# /sbin/ifconfig usb0 192.168.1.1 up netmask 255.255.255.0 On the Linux Host machine ####################### On insertion of the USB cable, 'dmesg' shows the following messages: usb 1-2: new high speed USB device using address 3 usb 1-2: configuration #1 chosen from 2 choices usb 1-2: can't set config #1, error -71 The Problem ------------------- On an attempt to setup an IP address for the usb0 interface, I get the following error: usb0: unknown interface: No such device SIOCSIFADDR: No such device usb0: unknown interface: No such device SIOCSIFNETMASK: No such device SIOCGIFADDR: No such device SIOCSIFBROADCAST: No such device The Test Setup ---------------------- Host #### Linux machine running Fedora Core 5. Manually loaded the module usbnet.ko. Target ##### OMAP3EVM running OMAP35x_SDK_0.9.8 firmware: x-load, u-boot and kernel (linux-2.6.22.18) Dip switches (SW4) set to boot from NAND flash (01010000) Although my end objective is to test the USB functionality with TWL4030 USB transceiver, I wanted to verify if USB functions as expected through ISP1504 transceiver on my board with the SDK_0.9.8. Has anyone tested the USB Gadget setup on the OMAP3EVM boards? Thanks in advance, Kanagesh. -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
