Messages in this thread Patch in this message | | | Subject | PATCH: specialix fix from 2.4 missing in 2.5 | Date | Sat, 15 Feb 2003 19:26:18 +0000 (GMT) | From | Alan Cox <> |
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diff -u --new-file --recursive --exclude-from /usr/src/exclude linux-2.5.61/drivers/char/sx.c linux-2.5.61-ac1/drivers/char/sx.c --- linux-2.5.61/drivers/char/sx.c 2003-02-15 03:39:30.000000000 +0000 +++ linux-2.5.61-ac1/drivers/char/sx.c 2003-02-14 23:16:53.000000000 +0000 @@ -2233,6 +2233,23 @@ return 0; } + /* Now we're pretty much convinced that there is an SI board here, + but to prevent trouble, we'd better double check that we don't + have an SI1 board when we're probing for an SI2 board.... */ + + write_sx_byte (board, SI2_ISA_ID_BASE,0x10); + if ( IS_SI1_BOARD(board)) { + /* This should be an SI1 board, which has this + location writable... */ + if (read_sx_byte (board, SI2_ISA_ID_BASE) != 0x10) + return 0; + } else { + /* This should be an SI2 board, which has the bottom + 3 bits non-writable... */ + if (read_sx_byte (board, SI2_ISA_ID_BASE) == 0x10) + return 0; + } + printheader (); printk (KERN_DEBUG "sx: Found an SI board at %lx\n", board->hw_base);
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