Hello experts,
i need your help i'm trying to do some testing on usb , pc to device is connected by usb, from my pc i have to copy some dummy file to device and read it back.
note: device has no support for otg host.
waiting for expert advice.
Hi Ganesh
one can test it with dd command and using "g_mass_storage gadget"
please look at attached description sect.2.2 Test g_mass_storage module
(from http://repository.timesys.com/buildsources/i/imx-test/imx-test-3.14.28-1.0.0/ )
examples of dd usage:
Re: USB OTG Mass Storage Pefromance
Best regards
igor
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Hi igor,
I have actually gone through your links, in i.mx6 board is running,using usb i connected to pc, my i.mx6 sd card has 2 partition, sd1 carries uboot, uimage, rootfs and sdb2 is simple config file, sd card is of 8gb divided in 6:2 ratio. when i.mx6 is connected to pc, in pc i can see sdb i.e sdb2 partition. lsusb -l gives storage device. my second partition is fat32, i have done some test.
in pc:
$ cd /media/partition2/
$ sudo dd if=/dev/zero of=tempfile bs=512 count=100 conv=fdatasync,notrunc
copied 105M in 12 sec with 8.1 MB/s
$df -h
i can see change here in partition usage
but when i go device terminal,
df -h gives no change in size to see change i have to reboot my device.
what am i doing is correct. if so what is the way to see run time change in sd card partition in device.
Thanks in advance for helping me.