i.MX ProcessorsのトピックAssign a static USB port on Android 9

Assign a static USB port on Android 9

vinothkumars — Wed, 13 Nov 2019 08:10:09 GMT

Dear NXP,

I am working on IMX8QM with Android 9. I needs to configure usb stick on static mount point.

Currently,

/dev/block/vold/public:8,1 3918844 2993196 925648 77% /mnt/media_rw/2A61-DD07

Needs to configure,

/dev/block/vold/public:8,1 3918844 2993196 925648 77% /mnt/media_rw/USB

Thanks & Regards,

VinothS

Re: Assign a static USB port on Android 9

b36401 — Thu, 14 Nov 2019 02:12:09 GMT

You can assign the mountpoint in fstab.

Re: Assign a static USB port on Android 9

vinothkumars — Thu, 14 Nov 2019 02:19:50 GMT

Thank you Victor,

Will you please give example. I tried but, I am unable to do it. Maybe I miss something.

Thanks & Regards,

VinothS,

Re: Assign a static USB port on Android 9

vinothkumars — Tue, 19 Nov 2019 11:44:26 GMT

Once usb stick detected,

create sda1 ,

after check I got,

mek_8q:/sdcard # df
Filesystem                                           1K-blocks                Used             Available       Use%          Mounted on
/dev/root                                              1777588                  1189664         587924         67%             /
tmpfs                                                    2918920                  488                2918432       1%             /dev
tmpfs                                                    2918920                  0                    2918920       0%             /mnt
/dev/block/mmcblk0p12                       249828                    58936            190892         24% /vendor
/dev/block/mmcblk0p14                      9086336                   967628          8118708       11%           /data
/data/media                                         9086336                   967628        8118708       11% /mnt/runtime/default/emulated
/dev/block/vold/public:8,1 3918844 1311400 2607444 34% /mnt/media_rw/2A61-DD07

I needs to configure static point instead of some random number (/mnt/media_rw/2A61-DD07).

If it possible, Please provide the configuration and files with respect to Android 9 with IMX8QM

Thanks & Regards,

VinothS

Re: Assign a static USB port on Android 9

vinothkumars — Fri, 22 Nov 2019 04:46:57 GMT

Hi,

Done Static point in the following source code,

system/vold/model/PublicVolume.cpp

Current configuration,

// Use UUID as stable name, if available     std::string stableName = getId();     if (!mFsUuid.empty()) {         stableName = mFsUuid;     }     mRawPath = StringPrintf("/mnt/media_rw/%s", stableName.c_str());

New Configuration,

// Use UUID as stable name, if available     std::string stableName = getId();     if (!mFsUuid.empty()) {         stableName = mFsUuid;     }     mRawPath = StringPrintf("/mnt/media_rw/USB");

Thanks & Regards,

VinothS