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At any one given time, there can be an abitrary number of USB drivers in the system. The way driver mapping works (i.e, a device is inserted, and a potentially matching driver is probed) requires us to have instantiated driver objects _before_ a device is inserted. This leaves us with a slight "chicken and egg" problem. We cannot call the probe function before the driver is initialised, but we need to know _what_ driver to initialise. This section is designed to store pointers to functions that are called during the last stage of the early `_init` sequence in the Kernel. The accompanying macro in `USBDriver` emits a symbol, based on the driver name, into this table that is then automatically called. This way, we enforce a "common" driver model; driver developers are not only required to write their driver and inherit from `USB::Driver`, but are also required to have a free floating init function that registers their driver with the USB Core. |
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| .. | ||
| PCI | ||
| SerialIO | ||
| USB | ||
| VirtIO | ||