diff options
Diffstat (limited to 'sys/dev/ep/if_epreg.h')
| -rw-r--r-- | sys/dev/ep/if_epreg.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/sys/dev/ep/if_epreg.h b/sys/dev/ep/if_epreg.h index aec663c..5fa60aa 100644 --- a/sys/dev/ep/if_epreg.h +++ b/sys/dev/ep/if_epreg.h @@ -231,6 +231,15 @@ * ****************************************/ +/* + * Command parameter that disables threshold interrupts + * PIO (3c509) cards use 2044. The fifo word-oriented and 2044--2047 work. + * "busmastering" cards need 8188. + * The implicit two-bit upshift done by busmastering cards means + * a value of 2047 disables threshold interrupts on both. + */ +#define EP_THRESH_DISABLE 2047 + /* * Command register. All windows. * |
