Linux Hardware Compatibility HOWTO
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# 12. Controllers (multiport)

## 12.1. Non-intelligent cards

### 12.1.1. Supported

- AST FourPort and clones (4 port)

- Accent Async-4 (4 port)

- Arnet Multiport-8 (8 port)

- Bell Technologies HUB6 (6 port)

- Boca BB-1004, 1008 (4, 8 port) - no DTR, DSR, and CD

- Boca BB-2016 (16 port)

- Boca IO/AT66 (6 port)

- Boca IO 2by4 (4 serial / 2 parallel, uses 5 IRQ's)

- Computone ValuePort (4, 6, 8 port) (AST FourPort compatible)

- DigiBoard PC/X, PC/Xem, PCI/Xem, EISA/Xem, PCI/Xr (4, 8, 16 port)

- Comtrol Hostess 550 (4, 8 port)

- PC-COMM 4-port (4 port)

- SIIG I/O Expander 4S (4 port, uses 4 IRQ's)

- STB 4-COM (4 port)

- Twincom ACI/550

- Usenet Serial Board II (4 port)

Non-intelligent cards usually come in two varieties, one using standard com port addresses and use 4 IRQ's, and another that's AST FourPort compatible and uses a selectable block of addresses and a single IRQ. (Addresses and IRQ's are set using `setserial`.) If you're getting one of these cards, be sure to check which standard it conforms to, prices are no indication.

## 12.2. Intelligent cards

### 12.2.1. Supported

- Computone IntelliPort II (4/8/16 port)

  (driver)

- Cyclades Cyclom-Y (RISC-based, 8-32 ports) (ISA/PCI)

  (driver)

- Cyclades-Z (high-end, 16-64 ports) (PCI)

  (driver)

- DigiBoard PC/Xe (ISA), PC/Xi (EISA) and PC/Xeve

  (driver)

- Equinox SST Intelligent serial I/O cards

  (driver)

- Hayes ESP 1, 2 and 8 port versions Included in kernel since 2.1.15. The driver for kernel versions 2.0.x can be found at (driver)

- Stallion EasyIO (ISA) / EasyConnection 8/32 (ISA/MCA) / EasyConnection 8/64 (PCI) For DIP switch settings and configuration files check (driver)

- Stallion EasyConnection 8/64 (ISA/EISA) / ONboard (ISA/EISA/MCA) / Brumby (ISA) The latest driver can be found at (driver)

### 12.2.2. Alpha, Beta drivers

- Comtrol RocketPort (8/16/32 port)

  (driver) (kernels 1.2.x). A driver for kernels 2.x can be found at (driver)

- DigiBoard COM/Xi Contact Simon Park (si@wimpol.demon.co.uk) or Mark Hatle (fray@krypton.mankato.msus.edu). NOTE: both email addresses seem not to exist any longer.

- Moxa C102, C104, C168, C218 (8 port), C320 (8/16/24/32 expandable) and C320T

  (driver)

- RISCom/8

- Specialix SIO/XIO (modular, 4 to 32 ports)

  (driver)

- Specialix IO8+ Contact

  devices@BitWizard.nl

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