Messages in this thread Patch in this message | | | Date | Fri, 16 Mar 2001 09:30:42 +0100 | From | (Gunther Mayer) | Subject | Patch(2.4.2): isapnp detect fix (wrong checksum) |
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Hi, this fix lets linux detect cards which don't have a correct checksum.
These are probably common, it seems isapnptools _silently_ fixes this up !
Please apply if you like, comments welcome.
Regards, Gunther
--- linux/drivers/pnp/isapnp.c-2.4.2-orig Fri Mar 16 09:08:47 2001 +++ linux/drivers/pnp/isapnp.c Fri Mar 16 09:21:45 2001 @@ -993,10 +993,15 @@ header[4], header[5], header[6], header[7], header[8]); printk("checksum = 0x%x\n", checksum); #endif - if (checksum == 0x00 || checksum != header[8]) /* not valid CSN */ + /* Don't be strict on the checksum, here ! + e.g. 'SCM SwapBox Plug and Play' has header[8]==0 (should be: b7)*/ + if (header[8] == 0) + ; + else if (checksum == 0x00 || checksum != header[8]) /* not valid CSN */ continue; if ((card = isapnp_alloc(sizeof(struct pci_bus))) == NULL) continue; + card->number = csn; card->vendor = (header[1] << 8) | header[0]; card->device = (header[3] << 8) | header[2];[unhandled content-type:application/octet-stream] | |