[PATCH 02/10] USB: reduce USB_MAXCHILDREN on imported ch11.h
Sebastian Hesselbarth
sebastian.hesselbarth at gmail.com
Wed Jul 23 06:51:43 PDT 2014
Barebox supports up to 8 USB devices attached on a Hub, Linux does 31.
Reduce the USB_MAXCHILDREN define in ch11.h to the Barebox one and
put a comment above.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth at gmail.com>
---
To: Sascha Hauer <s.hauer at pengutronix.de>
Cc: barebox at lists.infradead.org
---
include/usb/ch11.h | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/include/usb/ch11.h b/include/usb/ch11.h
index 331499d597fa..924a9ea64c5e 100644
--- a/include/usb/ch11.h
+++ b/include/usb/ch11.h
@@ -19,8 +19,10 @@
* up to 22 devices to connect. Upcoming hardware might raise that
* limit. Because the arrays need to add a bit for hub status data, we
* use 31, so plus one evens out to four bytes.
+ *
+ * Reduced to 8 max children for Barebox.
*/
-#define USB_MAXCHILDREN 31
+#define USB_MAXCHILDREN 8
/*
* Hub request types
--
2.0.0
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