Support both internal storage(emmc) & external sdcard in IMX8qxp

wasim_nazir — Thu, 04 Jun 2020 12:51:45 GMT

Hi All,

I am trying to support internal emmc as internal storage and an external physical sdcard as external storage, both accessible by APPs separately in Android.

How to do this in IMX8qxp taken from imx-p9.0.0_2.3.0.

Thanks in Advance

Re: Support both internal storage(emmc) & external sdcard in IMX8qxp

weidong_sun — Mon, 08 Jun 2020 03:34:42 GMT

Hi Wasim,

Your question is how to get access to the SD card in Android, this issue has no relations to I.MX8QXP.

probably you can try this method:

1. find "frameworks/base/services/core/java/com/android/server/pm/PackageManagerService.java"

2. Open the file, and Find "grantPermissionsLPw" function.

In the function, find "if (allowedSig）" in "case PermissionInfo.PROTECTION_SIGNATURE: {"

3. Change it like bleow

if (allowedSig || perm.equals("android.permission.MOUNT_UNMOUNT_FILESYSTEMS")
|| perm.equals("android.permission.WRITE_MEDIA_STORAGE"))

Then try it.

If the way can't solve your problem, you can search related solution from internet, or android development site.

Hope above answer is helpful to you.

Have a nice day!

B.R,

Weidong

i.MX ProcessorsのトピックRe: Support both internal storage(emmc) & external sdcard in IMX8qxp

Support both internal storage(emmc) & external sdcard in IMX8qxp

Re: Support both internal storage(emmc) & external sdcard in IMX8qxp