diff options
author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-07-29 14:50:17 -0400 |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-07-29 14:50:17 -0400 |
commit | 9c5891bd4342349a200676d33f742dd1b864822c (patch) | |
tree | b14c1698f2d8ce5276e1befd562f6398a46b48b9 /include/uapi/linux/usb/ch11.h | |
parent | ecda040ff3724f021a96491ecee88d48e968c153 (diff) | |
parent | 5ae90d8e467e625e447000cb4335c4db973b1095 (diff) |
Merge 3.11-rc3 into char-misc-next.
This resolves a merge issue with:
drivers/misc/mei/init.c
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/uapi/linux/usb/ch11.h')
-rw-r--r-- | include/uapi/linux/usb/ch11.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/include/uapi/linux/usb/ch11.h b/include/uapi/linux/usb/ch11.h index 7692dc69ccf7..331499d597fa 100644 --- a/include/uapi/linux/usb/ch11.h +++ b/include/uapi/linux/usb/ch11.h | |||
@@ -11,6 +11,17 @@ | |||
11 | 11 | ||
12 | #include <linux/types.h> /* __u8 etc */ | 12 | #include <linux/types.h> /* __u8 etc */ |
13 | 13 | ||
14 | /* This is arbitrary. | ||
15 | * From USB 2.0 spec Table 11-13, offset 7, a hub can | ||
16 | * have up to 255 ports. The most yet reported is 10. | ||
17 | * | ||
18 | * Current Wireless USB host hardware (Intel i1480 for example) allows | ||
19 | * up to 22 devices to connect. Upcoming hardware might raise that | ||
20 | * limit. Because the arrays need to add a bit for hub status data, we | ||
21 | * use 31, so plus one evens out to four bytes. | ||
22 | */ | ||
23 | #define USB_MAXCHILDREN 31 | ||
24 | |||
14 | /* | 25 | /* |
15 | * Hub request types | 26 | * Hub request types |
16 | */ | 27 | */ |