From: Sarah Sharp <sarah.a.sharp@xxxxxxxxxxxxxxx>
Allow the xHCI drivers (and any new USB 3.0 drivers) to parse the
SuperSpeed endpoint companion descriptor to find the maximum number of
bulk endpoint streams the endpoint supports. This is used to calculate
the maximum total number of streams the driver can allocate.
Signed-off-by: Sarah Sharp <sarah.a.sharp@xxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>
---
include/linux/usb/ch9.h | 2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/include/linux/usb/ch9.h b/include/linux/usb/ch9.h
index e58369f..603b61a 100644
--- a/include/linux/usb/ch9.h
+++ b/include/linux/usb/ch9.h
@@ -556,6 +556,8 @@ struct usb_ss_ep_comp_descriptor {
} __attribute__ ((packed));
#define USB_DT_SS_EP_COMP_SIZE 6
+/* Bits 4:0 of bmAttributes if this is a bulk endpoint */
+#define USB_SS_MAX_STREAMS(p) (1 << (p & 0x1f))
/*-------------------------------------------------------------------------*/
--
1.7.1
--
To unsubscribe from this list: send the line "unsubscribe linux-usb" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
