Pavel Antokolsky aka Zigmar wrote: [...] > Hi Jason! Thanks a lot for the tip - it did help. On other hand - I'm > stuck. I was hoping to use sd card as a medium to transfer data > between android app and usb host, but as it looks I can write either > externally or internally but not both at the same time. I guess > android developers had chosen not to implement fs synchronization, > thus disabling concurrent writes.
No phones can do this --- it's a filesystem limitation; FAT simply can't cope with more than one concurrent user. Only really specialised filesystems can do that, and most of them require additional hardware to synchronise the different users. If you want to allow the PC and the phone to access the device concurrently, you'll need to use a file system server on the phone and proxy requests from the PC. JCIFS looks helpful here. -- ┌─── ｄｇ＠ｃｏｗｌａｒｋ．ｃｏｍ ───── http://www.cowlark.com ───── │ │ ⍎'⎕',∊N⍴⊂S←'←⎕←(3=T)⋎M⋏2=T←⊃+/(V⌽"⊂M),(V⊝"M),(V,⌽V)⌽"(V,V←1⎺1)⊝"⊂M)' │ --- Conway's Game Of Life, in one line of APL
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