Messages in this thread |  | | | Date | Mon, 18 May 1998 13:59:03 -0400 | | From | mlord <> | | Subject | Re: 2.1.102, IDE DMA and OPTi 82C621 |
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Trevor Johnson wrote: > > > > I have a PC with an Amptron PM-7400 motherboard. The OPTi 82C621 chip is > > > built onto it. According to the author of the Linux driver for this chip, > > > it does not support IDE DMA. I compiled Linux 2.1.102 with > > > > I am the author of the Linux IDE DMA driver, > > which is *the* driver for all IDE PCI DMA chipsets, > > and I don't remember you asking me that. > > I had asked Jaromir Koutek, the author of the OPTi 621 driver for Linux > (drivers/block/opti621.c).
The opti621.c file is not actually a driver, but rather a chipset tuning module. That code may get removed sometime soon, as it is being superceeded by the new /proc/ide/*/config interface. Try building a kernel *without* the opti621 support, and see if DMA works then.
Thanks -- mlord@pobox.com The Linux IDE guy
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