UTP not receive MFGtool command since boot into linux kernel 4.1.15

[wallyyeh]

Hi, Guys:

    I got an issue when upgrade our product's kernel from 3.0.35 to 4.1.15.

that is /dev/utp not recieve any "updater" command from MFGtools.

    in old 3.0.35 kernel, all I need to do is modprobe "g_file_storage" to initialize /dev/utp; then call "uuc" program to read /dev/utp.

    In kernel 4.1.15; I have to use configfs for /dev/utp initializing. but after "uuc" executed, nothing happened. I am wondering is I missed configure the configfs for usb_f_mass_gadget?

    I list my steps below:

/* load needed kernel modules */

modprobe libcomposite
modprobe usb_f_mass_storage

/* configure configfs for mass_storage function */

mkdir /tmp/configfs
mount none /tmp/configfs/ -t configfs

mkdir /tmp/configfs/usb_gadget/g1
echo "0x1d6b" > /tmp/configfs/usb_gadget/g1/idVendor
echo "0x0002" > /tmp/configfs/usb_gadget/g1/idProduct

mkdir /tmp/configfs/usb_gadget/g1/strings/0x409
echo 3 > /tmp/configfs/usb_gadget/g1/strings/0x409/manufacturer
echo 2 > /tmp/configfs/usb_gadget/g1/strings/0x409/product
echo 1 > /tmp/configfs/usb_gadget/g1/strings/0x409/serialnumber

mkdir /tmp/configfs/usb_gadget/g1/configs/c.1

mkdir /tmp/configfs/usb_gadget/g1/configs/c.1/strings/0x409

mkdir /tmp/configfs/usb_gadget/g1/functions/mass_storage.0

ln -s /tmp/configfs/usb_gadget/g1/functions/mass_storage.0 /tmp/configfs/usb_gadget/g1/configs/c.1

/* now call bind function in usb_f_mass_storage.ko, this will initialize /dev/utp device node */

echo "ci_hdrc.0" > /tmp/configfs/usb_gadget/g1/UDC

/* call uuc to listen /dev/utp */

sudo /usr/bin/uuc

    Does I missed anything important? please tell me what I missed, I'll be very appreciated.

Wally

[CarlosCasillas]

Hi,

Could you please specify which platform are you using? You could refer to Section “Manufacturing Tool, MFGTool” on the i.MX Yocto Project User's Guide document in order to build an image with MFGTool support, and to section "Serial download mode for the Manufacturing Tool" in the i.MX Linux® User's Guide (IMXLUG) for more details on how to use the manufacturing tool.

Additionally, you could take a look at the following thread:

https://community.nxp.com/thread/395344

Hope this will be useful for you.
Best regards!
/Carlos
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[wallyyeh · Accepted solution]

Hi, Carlos:

    Thankyou! Your post really saved my day. according your suggest reference, I found the correctly modporbe command should be:

sudo modprobe g_mass_storage stall=0 removable=1 idVendor=0x066F idProduct=0x37FF \

iSerialNumber="" clk_ignore_unused

    Execute above modprobe command then sudo uuc, now it finally can read messages what MFGtools sending. :smileyhappy:

Wally