On Thu, Jan 11, 2007 at 07:57:18PM +0530, dhanya wrote: > > -----Original Message----- > From: Greg KH [mailto:greg@xxxxxxxxx] > Sent: Thursday, January 11, 2007 4:58 AM > To: dhanya > > > >Why would a userspace program want this information? You have access to > >all ACPI tables if you wish to parse it yourself in /proc/acpi, right? > > I have seen the DSDT tables in ACPI (through iasl disassembler) in my > machine. But there is no _SUN object entry present in that. Are you sure that your machine's ACPI tables really have those objects in it? > Do you have any idea, in which conditions this _SUN object entry will be > present in ACPI DSDT tables? What does the ACPI spec say about the requirement of these objects? > Or > Is there any issue with ACPI BIOS of my machine if _SUN object is not > present in DSDT table? Depends, do you have a ACPI controlled pci hotplug controller on your machine? If not, then no, I would not expect those entries to be there, would you? > Or > Will _SUN object be present in only PCI Hot pluggable machines? Try reading the ACPI spec about this :) And again, why do you need these objects? What use can userspace have for them? What are you trying to accomplish here? If you are only looking for these objects to detect if you have a pci hotplugable machine, that is incorrect and you should be asking the kernel for something else... thanks, greg k-h -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
