Re: [fuse-devel] Permission Denied Problem when opening a Character Device

[Miklos S. <mi...@sz...>]

> I am attempting to open a file as a character device.  Using the hello.c
> example provided with the fuse installation
> I changed the hello_getattr method st_buf->st_mode return value from
> S_IFREG | 0444 to S_IFCHR | 0444.
>  
> I have mounted hello at /tmp/fiona
>  
> When perform an ls -l or a stat on /tmp/fiona/hello I can see the
> permissions indication that it is a character device
> "cr--r--r--"
>  
> If I try to more or cat /tmp/fiona/hello I get "Permission denied". 
>  
> Can anyone suggest what I am doing wrong?

You need to use the "-odev" mount option.  You can only do this as
root, for security reasons.

Miklos