Add ATA PIO IRQ handler, documentation
Still WIP, doesn't look like IRQ handler works yet.
diff --git a/doc/architecture.rst b/doc/architecture.rst
index a515f34..b946a54 100644
--- a/doc/architecture.rst
+++ b/doc/architecture.rst
@@ -45,11 +45,8 @@
interface with a certain device (or class of devices). The relevant fields of
``struct pci_device_driver`` are shown here:
-.. code-block::
-
- bool (* supports)(struct pci_device *dev);
- void (* init)(struct pci_device dev, uchar bus, uchar slot, uchar func);
- char *generic_name;
+.. doxygenstruct:: pci_device_driver
+ :project: Kernel
A PCI device driver must pass an instance of this structure to
``pci_register_device_driver`` (in ``include/kernel/dri/pci/pci.h``. If