AM3517 USB-OTG, RNDIS Gadget Driver, g_ether.ko

Chinna,

Is the /lib/modules/2.6.37/g_ether.ko file actually in that directory?  That is not a normal location for driver modules.  Usually it is something like /lib/modules/2.6.37/kernel/drivers/usb/......

Also if you want to use modprobe then you should have run depmod and also only do modprobe g_ether and not give the whole path.

Chase

Dear Chase,

Yes, its in the  same directory, As you said the path in with k_gether.ko copied is not correct but in my file system the path is not present at all i am bit confused by that. Actually path ends as follows..

root@devkit:~# ls /lib/modules/2.6.37/
g_ether.ko           modules.devname      modules.seriomap
modules.alias        modules.ieee1394map  modules.softdep
modules.alias.bin    modules.inputmap     modules.symbols
modules.ccwmap       modules.isapnpmap    modules.symbols.bin
modules.dep          modules.ofmap        modules.usbmap
modules.dep.bin      modules.pcimap

 root@devkit:~#

Is there any more setting in while compiling kernel i had selected module loading and unloading in make menuconfig. should i compile filesystem also. Any more suggesions.

Thank you,

Chase.

Rajeev,

Which version of the Sitara Linux SDK are you using?

Chase

You can try to run command "depmod -a" on the target.

maybe this topic can give you some help - http://e2e.ti.com/support/embedded/linux/f/354/p/185255/668845.aspx#668845

Chase,

I am using 2.6.37 kernel and PSP 04.02.00.07 version.

I had made necessary changes in .config like compiling kernel with usb as modul.

Following are the commands used for bulding kernel and modules and installing into SDCARD
make ARCH=arm CROSS_COMPILE=arm-none-linux-gnueabi- uImage
make ARCH=arm CROSS_COMPILE=arm-none-linux-gnueabi- modules
#make ARCH=arm modules_install INSTALL_MOD_PATH=/media/46fe61eb-d3ea-4813-9e18-45bf7cd72a18/

  INSTALL drivers/net/wireless/libertas/libertas_sdio.ko
  INSTALL drivers/scsi/scsi_wait_scan.ko
  INSTALL drivers/staging/omap3-sgx/pvrsrvkm.ko
  INSTALL drivers/staging/omap3-sgx/services4/3rdparty/bufferclass_ti/bufferclass_ti.ko
  INSTALL drivers/staging/omap3-sgx/services4/3rdparty/dc_omap3430_linux/omaplfb.ko
  INSTALL drivers/usb/gadget/g_ether.ko
  DEPMOD  2.6.37

SDCARD is in /media/46xx path, by the above command i am able to generate modules in kernel/driver/

Rajeev

root@devkit:~# ls -ltr  /lib/modules/2.6.37/kernel/drivers/
drwxr-xr-x    3 root     root          1024 Jun  6 05:00 usb
drwxr-xr-x    3 root     root          1024 Jun  6 05:00 staging
drwxr-xr-x    2 root     root          1024 Jun  6 05:00 scsi
drwxr-xr-x    3 root     root          1024 Jun  6 05:00 net

I am still facing same problem.

root@devkit:~# insmod  /lib/modules/2.6.37/kernel/drivers/usb/gadget/g_ether.ko
insmod: can't insert '/lib/modules/2.6.37/kernel/drivers/usb/gadget/g_ether.ko': No such device

James,

Yes i did depmod -a and also depmod.26 -a nothing is getting executed

Rajeev

Chase,

I am able to insert the scsi_wait_scan.ko module successfully

root@devkit:/lib/modules/2.6.37# insmod kernel/drivers/scsi/scsi_wait_scan.ko

root@devkit:/lib/modules/2.6.37# ls -ltr
lrwxrwxrwx    1 root     root            49 Jun  6 05:00 source -> /data/xukr-20120103-omap3.bkp/linux-2.6.37-tn.bkp
-rw-r--r--    1 root     root           340 Jun  6 05:00 modules.order
-rw-r--r--    1 root     root          5906 Jun  6 05:00 modules.builtin
drwxr-xr-x    3 root     root          1024 Jun  6 05:00 kernel
lrwxrwxrwx    1 root     root            49 Jun  6 05:00 build -> /data/xukr-20120103-omap3.bkp/linux-2.6.37-tn.bkp
-rw-r--r--    1 root     root           189 Jun  6 12:05 modules.usbmap
-rw-r--r--    1 root     root           114 Jun  6 12:05 modules.symbols.bin
-rw-r--r--    1 root     root           142 Jun  6 12:05 modules.symbols
-rw-r--r--    1 root     root           131 Jun  6 12:05 modules.softdep
-rw-r--r--    1 root     root            43 Jun  6 12:05 modules.seriomap
-rw-r--r--    1 root     root            99 Jun  6 12:05 modules.pcimap
-rw-r--r--    1 root     root            74 Jun  6 12:05 modules.ofmap
-rw-r--r--    1 root     root            81 Jun  6 12:05 modules.isapnpmap
-rw-r--r--    1 root     root           141 Jun  6 12:05 modules.inputmap
-rw-r--r--    1 root     root            73 Jun  6 12:05 modules.ieee1394map
-rw-r--r--    1 root     root            52 Jun  6 12:05 modules.devname
-rw-r--r--    1 root     root           633 Jun  6 12:05 modules.dep.bin
-rw-r--r--    1 root     root           436 Jun  6 12:05 modules.dep
-rw-r--r--    1 root     root            69 Jun  6 12:05 modules.ccwmap
-rw-r--r--    1 root     root          6919 Jun  6 12:05 modules.builtin.bin
-rw-r--r--    1 root     root            92 Jun  6 12:05 modules.alias.bin
-rw-r--r--    1 root     root           123 Jun  6 12:05 modules.alias

As you can see following is change in all .dep .order files i checked with them .dep file g_ether.ko is present

root@devkit:/lib/modules/2.6.37# cat modules.dep
kernel/drivers/scsi/scsi_wait_scan.ko:
kernel/drivers/net/wireless/libertas/libertas_sdio.ko:
kernel/drivers/usb/gadget/g_ether.ko:
kernel/drivers/staging/omap3-sgx/services4/3rdparty/dc_omap3430_linux/omaplfb.ko: kernel/drivers/staging/omap3-sgx/pvrsrvkm.ko
kernel/drivers/staging/omap3-sgx/services4/3rdparty/bufferclass_ti/bufferclass_ti.ko: kernel/drivers/staging/omap3-sgx/pvrsrvkm.ko
kernel/drivers/staging/omap3-sgx/pvrsrvkm.ko:

if i modprobe following is the error, it says g_ether.ko as no such device

root@devkit:/lib/modules/2.6.37# modprobe g_ether.ko
modprobe: can't load module g_ether.ko (kernel/drivers/usb/gadget/g_ether.ko): No such device
root@devkit:/lib/modules/2.6.37# ls kernel/drivers/usb/gadget/g_ether.ko
kernel/drivers/usb/gadget/g_ether.ko
root@devkit:/lib/modules/2.6.37#

Can you do an lsmod command and look if you already have a gadget driver loaded. You can only have one gadget driver loaded and you can get that error message if you try loading a second.

Steve K.

Steve

 I had tested lsmod  also. Here are the list of modules, which are already inserted. but not g_ether.ko.

root@devkit:/# lsmod
Module                  Size  Used by    Tainted: G  
bufferclass_ti          4883  0
omaplfb                 8134  0
pvrsrvkm              153648  2 bufferclass_ti,omaplfb
libertas_sdio         134532  0

Any more suggestions.

Rajeev

Rajeev, Can you share some sample how to communicate and transfer data between linux and windows through USB 

Hello GR BSRS,

  1) You should configure  USB In LINUX unit as GADGET. This should be done in Kernel.

   2) In linux you should assign a IP for USB0 by /sbin/ifconfig usb0 223.0.0.10 up.

  3) And then when you connect LINUX unit to Windows PC ( using USB to MiniAB cable)

  4) It will prompt for a driver. you should download RNDIS gadget Driver for windows from Internet and include the path.

  5) Go to network setting in windows there you can see a network established with limited connection ,

     Open properties and set IP as 223.0.0.5 then a connection will be established.

  6) Then you can connect to Linux unit using PUTTY or WINSCP.

Have you need any more help  i am ready.. This time i will get back to early

Regards,

Rajeev

Hi 

I tried to menuconfig and i could not find option for 

<*> Inventra Highspeed Dual Role Controller (TI, ADI, ...)
           **** Platform Glue Layer ***
 <>     TUSB6010
 <*>     OMAP2430 and onwards
 <>     AM35x  

as mentioned in http://processors.wiki.ti.com/index.php/UserGuideUsbDriver_PSP_04_02_00_07#MUSB_OTG_controller_in_gadget_mode

hi is it possible for you to send me copy of g_ether.ko file BSRS

Hello BSRS,

From the link posted by you you are compiling Kernel for AM3517,

For that change the settings as follows

 <*> Inventra Highspeed Dual Role Controller (TI, ADI, ...) **** Platform Glue Layer ***

 <> TUSB6010 <> OMAP2430 and onwards

 <*> AM35x Driver Mode (USB Peripheral (gadget stack)) --->

 [ ] Disable DMA (always use PIO)

 [*] Use System DMA for Mentor DMA workaround 

 [*] Enable debugging messages

And also change menuconfig as follows

 <*>   USB Gadget Support  --->                                                                              
     *** OTG and related infrastructure ***                                                                  
   < >   GPIO based peripheral-only VBUS sensing 'transceiver'                                                  
    [ ]   Generic ULPI Transceiver Driver                                                                           
   <*>   NOP USB Transceiver Driver   

 <*>   USB Gadget Support  --->   

                                    <M>   USB Gadget Drivers                                                                                         
                                            < >     Gadget Zero (DEVELOPMENT)                                         
                                           < >     Audio Gadget (EXPERIMENTAL)                     
                                           <M>     Ethernet Gadget (with CDC Ethernet support) 
                                           [*]       RNDIS support              

And then compile with command  #make modules and also copy the modules into SDCARD

#sudo make ARCH=arm modules_install INSTALL_MOD_PATH=/mnt/sdcard
     <assuming his SD card is mounted in this path /mnt/sdcard>

Find attachment for modules.txt & .config (AM3517config.txt) files

Regards,

4188.modules.txt1665.AM3517config.txtRajeev

Hello BSRS,

Find the attachment for g_ether.ko for AM3517. As bin files are not uploading, made a tar file and attached so Extraxt the file to get g_ether.ko

In Kernel select    module loading support

Rajeev 

It did not work, i gave all the information at http://e2e.ti.com/support/embedded/linux/f/354/t/234172.aspx stated a new thread.

BSRS