| EM4K(4) | Kernel Interfaces Manual (Amiga) | EM4K(4) | 
NAME
 em4k — ELBOX Mediator 4000 PCI bridge driver
SYNOPSIS
 em4k0 at zbus0
emmem0 at zbus0
pci* at empb0
options PCI_NETBSD_CONFIGURE
DESCRIPTION
 The em4k driver provides support for the PCI bus present on Mediator 4000 bridge and associated PCI/Zorro daughterboards.
HARDWARE
 The 
em4k driver supports the following hardware:
- 
ELBOX Mediator PCI 4000D
- 
- 
ELBOX Mediator PCI 4000Di
- 
- 
ELBOX Mediator PCI 4000T
- 
- 
ELBOX Mediator PCI 3000D
- 
- 
ELBOX Mediator PCI 3000T
- 
MK-II editions are also supported.
 
HISTORY
 The em4k device first appeared in NetBSD 7.0.
AUTHORS
 The 
em4k driver was written by 
Radoslaw Kujawa <
radoslaw.kujawa@gmail.com>. It was developed using information obtained through reverse engineering by 
Frank Wille and 
Radoslaw Kujawa. The authors have no access to official documentation (which is only available under NDA).
 
BUGS
 DMA to host memory is not supported. It is unclear if the hardware supports DMA to host memory at all. It is possible to implement DMA through bounce buffers in graphics card memory, but this needs further research.