From f2e601b1f609fdd36ada06e3b99676da01b60102 Mon Sep 17 00:00:00 2001 From: imp Date: Fri, 17 May 2013 20:53:15 +0000 Subject: For ARM, MIPS, and PowerPC, default to 32-byte alignment, but allow it to be as small as 8. --- sys/dev/usb/usb_freebsd.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'sys/dev') diff --git a/sys/dev/usb/usb_freebsd.h b/sys/dev/usb/usb_freebsd.h index 870e869..0ae4533 100644 --- a/sys/dev/usb/usb_freebsd.h +++ b/sys/dev/usb/usb_freebsd.h @@ -56,8 +56,12 @@ #if (!defined(USB_HOST_ALIGN)) || (USB_HOST_ALIGN <= 0) /* Use default value. */ #undef USB_HOST_ALIGN +#if defined(__arm__) || defined(__mips__) || defined(__powerpc__) +#define USB_HOST_ALIGN 32 /* Arm and MIPS need at least this much, if not more */ +#else #define USB_HOST_ALIGN 8 /* bytes, must be power of two */ #endif +#endif /* Sanity check for USB_HOST_ALIGN: Verify power of two. */ #if ((-USB_HOST_ALIGN) & USB_HOST_ALIGN) != USB_HOST_ALIGN #error "USB_HOST_ALIGN is not power of two." -- cgit v1.1