Re: APM -- wmapm and user-initiated sleep/suspend?

["Sean 'Shaleh' Perry" <shalehperry@home.com>]

On 07-Nov-2001 Karsten M. Self wrote:
> I've got APM configured, and can initiate a sleep/suspend from root.  I
> can't do this as an unprivileged user either from the command line or
> via wmapm (a WindowMaker dock app).
> 
> Attempting same from command line:
> 
>     $ apm -S
>     Cannot open APM device: Permission denied
> 

I opened up the source and here is the flow:

if (access(/proc/apm, R_OK) || apm_read(&i) == 1) /* reads /proc/apm */
    return -1

if ((fd = open(/dev/apm_bios)) < 0) {
    /* attempt to create /dev/apm_bios, this is supposed to be for backwards
       compatibility only */
    if (mknod())
       return -1
}

return fd

Check out the flow on your machine and see where it is failing and take
appropriate actions.