[openfirmware] Disk properites

[Mitch Bradley]

Execute the "size" method.  It returns the device size in bytes as a 
64-bit number.  You can invoke it with the "call_method" client service.

Alternatively, you can use the "#blocks" method (returns the number of 
blocks as a 32-bit number).  The "block-size" method returns the size of 
a block, which will generally be 512 except for CD-ROM devices.

Abhishek Singh wrote:
> Hi to All,
>
>    I am porting minix to OLPC. Currently, I am able to boot minix on
> OLPC from a RAM disk. Minix can access the openfirmware services. As
> Minix doesn't have USB stack, it needs to use the openfirmware service
> routines to access the disk. Using openfirmware services I am able to
> read the disk. In order to properly initialize the minix disk device
> driver data structures, I need to figure out the size of the disk.
>
> Following are the properties that I can see from openfirmware
>
> ok devalias disk
> disk /usb at f,4/disk
> ok dev disk
> ok .properties
> iconname usbdisk
> compatible disk
> device_type block
> name disk
>
> Can anyone please tell me how can I access the size of the disk parameter?
>
> Thanks,
> Abhishek
>
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