FS automount: callback when FS is mounted

[Petro Karashchenko]

Hello,

I have a question regarding FS automount functionality. Is there a way 
to get a callback when file system is mounted and ready to be accessed? 
Or the only way is to implement a polling loop like:

while ( access( "/mnt/sdcard0", F_OK ) != 0 )
{
  sleep(1);
}

Best regards,
Petro