Hi,
I am currently implementing a general purpose shared library
for acpi focused on all the tools giving acpi information
like battery, thermal zones, fans, etc.
Since I was not able to find anything about it in the acpi
specs[0] (of course I didn't read every single page though)
and with a quick look into the kernel sources I wondered if
there is a maximum count for thermal zones and fans in the
acpi implementation of the kernel.
Every acpi module just calls proc_mkdir for example:
acpi_device_dir(device) = proc_mkdir(acpi_device_bid(device),
acpi_thermal_dir);
struct proc_dir_entry *proc_mkdir_mode(const char *name, mode_t mode,
struct proc_dir_entry *parent)
{
struct proc_dir_entry *ent;
ent = proc_create(&parent, name, S_IFDIR | mode, 2);
if (ent) {
ent->proc_fops = &proc_dir_operations;
ent->proc_iops = &proc_dir_inode_operations;
if (proc_register(parent, ent) < 0) {
kfree(ent);
ent = NULL;
}
}
return ent;
}
struct proc_dir_entry *proc_mkdir(const char *name,
struct proc_dir_entry *parent)
{
return proc_mkdir_mode(name, S_IRUGO | S_IXUGO, parent);
}
So is there no check for any max item count here?
I ask because I need to decide whether I want to allocate space for every
acpi object or to use a fixed size array for them depending on the maximum
item (where item is one device) count.
[0]: http://www.acpi.info/spec.htm
Kind regards
Nico
P.S. Please Cc me I am not subscribed
--
Nico Golde - http://ngolde.de - [email protected] - GPG: 0x73647CFF
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