topic Re: how can I mount much disk to the PC by otg ? in i.MX Processors

how can I mount much disk to the PC by otg ?

tomgao — Tue, 07 Mar 2017 09:19:22 GMT

As you konw ,we can test the otg function by the next cmd:

modprobe g_mass_storage file=/dev/mmcblk3p1 removable=1

But ,how can I let SD and USB mount to PC as the disk at the same time .

when I use the CMD . it just can mount the first one .

Re: how can I mount much disk to the PC by otg ?

igorpadykov — Tue, 07 Mar 2017 23:05:18 GMT

Hi tom

one can check various usb examples in unit tests (folder mxc_usb_test)

imx-test
www.nxp.com/lgfiles/NMG/MAD/YOCTO/imx-test-5.7.tar.gz

Best regards
igor
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Re: how can I mount much disk to the PC by otg ?

tomgao — Wed, 08 Mar 2017 02:51:43 GMT

Yes ,I have read about the 035-Loadable-Module-Test.txt . But it not use .

I test the next cmd:

modprobe g_mass_storage file=/dev/sda1,/dev/mmcblk3p1 removable=1 .But my PC still enumerate one disk.

who can help ?

next is the log:

modprobe g_mass_storage
Number of LUNs=8
Mass Storage Function, version: 2009/09/11
LUN: removable file: (no medium)
Number of LUNs=2
LUN: file: /dev/sda1
LUN: file: /dev/mmcblk3p1
Number of LUNs=2
g_mass_storage gadget: Mass Storage Gadget, version: 2009/09/11
g_mass_storage gadget: userspace failed to provide iSerialNumber
g_mass_storage gadget: g_mass_storage ready