tree d727c96bda9882323bf84b56d2dd09c9fb5e39b0 parent 3b4d7f79164853e10342d707e32307e0c8054982 author [EMAIL PROTECTED] <[EMAIL PROTECTED]> Fri, 12 Aug 2005 09:37:01 -0700 committer Greg Kroah-Hartman <[EMAIL PROTECTED]> Fri, 09 Sep 2005 06:28:25 -0700
[PATCH] USB: tweak highspeed timing calculations Use a more correct calculation for highspeed bit times. http://bugzilla.kernel.org/show_bug.cgi?id=3604 This sort if thing might start to make a difference now that the high speed periodic scheduler is more complete -- and even getting used. Signed-off-by: David Brownell <[EMAIL PROTECTED]> Signed-off-by: Greg Kroah-Hartman <[EMAIL PROTECTED]> drivers/usb/core/hcd.h | 8 ++++---- 1 files changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/usb/core/hcd.h b/drivers/usb/core/hcd.h --- a/drivers/usb/core/hcd.h +++ b/drivers/usb/core/hcd.h @@ -339,11 +339,11 @@ extern int usb_check_bandwidth (struct u * to preallocate bandwidth) */ #define USB2_HOST_DELAY 5 /* nsec, guess */ -#define HS_NSECS(bytes) ( ((55 * 8 * 2083)/1000) \ - + ((2083UL * (3167 + BitTime (bytes)))/1000) \ +#define HS_NSECS(bytes) ( ((55 * 8 * 2083) \ + + (2083UL * (3 + BitTime(bytes))))/1000 \ + USB2_HOST_DELAY) -#define HS_NSECS_ISO(bytes) ( ((38 * 8 * 2083)/1000) \ - + ((2083UL * (3167 + BitTime (bytes)))/1000) \ +#define HS_NSECS_ISO(bytes) ( ((38 * 8 * 2083) \ + + (2083UL * (3 + BitTime(bytes))))/1000 \ + USB2_HOST_DELAY) #define HS_USECS(bytes) NS_TO_US (HS_NSECS(bytes)) #define HS_USECS_ISO(bytes) NS_TO_US (HS_NSECS_ISO(bytes)) - To unsubscribe from this list: send the line "unsubscribe git-commits-head" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
