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puc — PCI “Universal” Communications driver
device pci device puc device sio device ppc
This driver acts as a shim to connect PCI serial and parallel ports to the sio(4) and ppc(4) driver. The list of supported devices is in sys/dev/puc/pucdata.c. Support for new cards should be added there.
This driver took the idea from the NetBSD puc(4) driver and still uses the same structure to describe cards, to ease exchanging card info.
Only serial ports are supported through the sio(4) driver at the moment.