| - info on Cyclades-Z firmware loading. |
| - info on Digi Intl. {PC,PCI,EISA}Xx and Xem series cards. |
| - info on using the Hayes ESP serial driver. |
| - file with info on installing/using Moxa multiport serial driver. |
| - notes on using the RISCom/8 multi-port serial driver. |
| - info on the Comtrol RocketPort multiport serial driver. |
| - info about RS485 structures and support in the kernel. |
| - info on hardware/driver for specialix IO8+ multiport serial card. |
| - info on the Specialix SX/SI multiport serial driver. |
| - guide to the locking policies of the tty layer. |