Guest jaarvin Posted September 29, 2012 Report Share Posted September 29, 2012 Hi, I looking for a solution to enable mass storage device on the ACER. replacing: ro.sys.usb.storage.type=mtp with: ro.sys.usb.storage.type=mass_storage in /system/build.prop has no effect neither adding : sys.usb.config mass_storage,adb persist.sys.usb.config mass_storage,adb sys.usb.state mass_storage,adb ... any idea ? Link to comment Share on other sites More sharing options...
Guest sbavi Posted September 29, 2012 Report Share Posted September 29, 2012 use: persist.sys.usb.config=mass_storage,adb wipe data/cache and reboot ;) Link to comment Share on other sites More sharing options...
Guest jaarvin Posted September 29, 2012 Report Share Posted September 29, 2012 (edited) use: persist.sys.usb.config=mass_storage,adb wipe data/cache and reboot Thanks ! You're right ! (bad cut/paste from setprobe lines) ! That's better with an = ! persist.sys.usb.config=mass_storage,adb seem to be sufficient to activate mass storage ! It works now ! but only the 2gb portion of internal memory used for apps and storage is mounted on computer, /sdard2 (the real ext memory card) is ignored ! Another idea or reco' ! ;-) Edited September 29, 2012 by jaarvin Link to comment Share on other sites More sharing options...
Guest jaarvin Posted September 29, 2012 Report Share Posted September 29, 2012 (edited) I tried different configurations according to init.usb.rc (imported at the beginning of /init.rc) There is also usb conf in /init.factory.rc and /meta_init.rc both dealing with adb and acm (my android knowledge is very limited and i do not know the purpose of these settings) combined (more than 2 values) configuration like one corresponding to #11: persist.sys.usb.config=mtp,mass_storage,adb do not works I confirm also that : persist.sys.usb.config=mass_storage,adb do not allow to mount /sdcard2 (external sdcard) on computer (only internal sdcard in visible and mount. THe strange part of the process is that /sdcard2 is unmount from the device (ACER) but not presented to the computer. I tried to reformat the external sdcard2 without success. any idea ? Edited October 2, 2012 by jaarvin Link to comment Share on other sites More sharing options...
Guest jaarvin Posted October 4, 2012 Report Share Posted October 4, 2012 (edited) It seems there is something wrong with sysfs on the E350 According to what is explain here: http://winterland.no...age-ums-in-ics/ A lun1 should be there : /sys/devices/platform/mt_usb/gadget/ In advanced_meta_init.rc : /sys/class/android_usb/android0/f_mass_storage/lun is a symlink to /sys/devices/platform/mt_usb/gadget/lun0 No place for lun1 Playing with vold init does no help I am stuck here for now Edited October 4, 2012 by jaarvin Link to comment Share on other sites More sharing options...
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