October 2004
Intermediate to advanced
304 pages
7h 44m
English
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Hack #75. Let Windows Tell You About I/O Card Conflicts
Early SCSI adapters and sound cards arrived in the PC market at about the same time. With only the known IBM PC design reference to go by, and no industry-standards group to keep track of who was developing what devices, none of the designers of various devices knew what the others were doing. In the face of limited available resources, everyone scrambled to establish a foothold and hoped they didn't get trampled.
It was not uncommon to encounter a SCSI host adapter and a sound card that both used the same address (often 220h or 330h). Obviously if both adapters used the same address this combination would not work. If software addressed the sound card, it would wrongly get the attention of the SCSI host adapter; if software addressed the SCSI host adapter, it would wrongly get the attention of the sound card.
In such battles, the device with more clout wins, and such was the case with the sound card. Many more people were buying sound cards than were investing in expensive SCSI devices, so makers of the SCSI adapters moved off to address 330h and the sound card manufacturers held the ground at 220h.
You need to know which devices use which addresses and configure them so there is no direct conflict. To find out if you have any device conflicts and drill down to what they are, open Windows Device Manager. If you see a yellow dot with an exclamation point in it, you have a conflict. If you see a red x, the device is disabled. ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.