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Revision - host controller PCI 9815 Multi-I/O Controller
This is an old revision of this page, as edited by daavve at 07:10, 28 October 2018. It may differ significantly from the Current revision.
model: PCI 9815 Multi-I/O Controller (model id: 1997)
possible other names of the device:
MCS9805
MCS9815
MCS9820
MCS9835
MCS9845
LSI Logic / Symbios Logic 2P0S (2 port parallel adaptor)
vendor:
MosChip Semiconductor Technology Ltd.
subtype (PCMCIA, USB, Firewire, HECI):
PCMCIA Controller
VendorID:ProductID code of the device:
9710:9815
year of commercialization:
not-specified
interface:
PCI
tested on:
Debian GNU/Linux Testing/Unstable
tested with the following kernel libre:
4.19.0-arch1-1-ARCH
does it work with free software?
yes
free driver used:
parport_pc
Description:
MCS9805, MCS9815, MCS9820, MCS9835 and MCS9845 PCI Serial / Parallel ports on Linux platform.

Specific options must sometimes be passed to the parport_pc driver using modprobe in order for the card to work properly. See the following PDF for detailed instructions: http://www.asix.com.tw/FrootAttach/driver/MCS98xx_Linux_Driver_Installation_Guide_v100.pdf

A file can be created inside /etc/modprobe.d to set parport_pc options at each boot. My Symbios Logic 2P0S (2 port parallel adaptor) takes the following options to work correctly on my machine:

etc/modprobe.d/01-MCS98XX.CONF: options parport_pc io=0x378,0xc050,0xc030 irq=4,18,18

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