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puc — PCI “Universal” Communications driver
device pci device puc device uart device ppc
This driver acts as a shim to connect PCI serial and parallel ports to the uart(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.