FBIOGET_FSCREENINFO Bad file descriptor
Opened this issue · 2 comments
GoogleCodeExporter commented
What steps will reproduce the problem?
1. Launch native binary from /data/data/app/binary using ProcessBuilder
What is the expected output? What do you see instead?
A screenshot is made. Binary exits.
What version of the product are you using? On what operating system?
Android 2.3.6, Nexus One; not rooted.
Here's a logdump:
I/LogThread(21851): Program initialized
I/LogThread(21851): Starting server...
I/LogThread(21851): - Socket creation
I/LogThread(21851): - Socket binding
I/LogThread(21851): - Socket in listening mode
I/LogThread(21851): Server started.
I/LogThread(21851): Listening on 0.0.0.0:42380
I/LogThread(21851): Signal handling setup
I/LogThread(21851): Starting main loop.
I/LogThread(21851): << select() on sockets... >>
I/LogThread(21851): Incoming client connection
I/LogThread(21851): - Connection accepted
I/LogThread(21851): << select() on sockets... >>
I/ScreenshotService(21851): Error writeImageFile: null
I/LogThread(21851): Client socket signaled for input
I/LogThread(21851): - Retreiving data
I/LogThread(21851): - Command identified as SCREEN
I/LogThread(21851): - Taking screenshot
I/LogThread(21851): An error occured: ioctl FBIOGET_FSCREENINFO Bad file
descriptor
I/LogThread(21851): Exiting now...
Original issue reported on code.google.com by genn...@codeseekah.com on 21 Mar 2012 at 8:18
GoogleCodeExporter commented
By default native servce access fb0 Framebuffer but In latest mobiles like
Samsung Galaxy S3 there are multiple frame buffers like fb0, fb1, fb2..... and
none of them is accessible. I need to understand which one is the primary
buffer where I can get Frames. Can someone please help me with this ?
Original comment by DIPI24...@gmail.com on 8 Jan 2014 at 6:07
GoogleCodeExporter commented
I am facing the same issue, on an Xperia Neo. If I understood the problem
correctly, we can take screenshots without root permissions only when the
framebuffer is readable from everyone.
Original comment by alessand...@gmail.com on 20 May 2014 at 7:18