diff options
| author | Sebastian Andrzej Siewior <bigeasy@linutronix.de> | 2012-02-25 12:28:10 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-02-28 14:07:42 -0500 |
| commit | b8db6d6402ddca1c78a27407fbd10a6ccb23ab14 (patch) | |
| tree | 4e9dfe7724cb2332f083f4dd0a3a4b5576c0e28a /include/linux/usb | |
| parent | 7ac4704c099125214a4f0a4bd54ce94d15be2ffb (diff) | |
usb/storage: redefine US_BULK_FLAG_IN and use it
US_BULK_FLAG_IN is defined as 1 and not used. The USB storage spec says
that bit 7 of flags within CBW defines the data direction. 1 is DATA-IN
(read from device) and 0 is the DATA-OUT. Bit 6 is obselete and bits 0-5
are reserved.
This patch redefines the unsued define US_BULK_FLAG_IN from 1 to 1 << 7
aka 0x80 and replaces the obvious users. In a following patch the
storage gadget will use it as well.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/usb')
| -rw-r--r-- | include/linux/usb/storage.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/usb/storage.h b/include/linux/usb/storage.h index 87a94bf34d47..4de58b15fad6 100644 --- a/include/linux/usb/storage.h +++ b/include/linux/usb/storage.h | |||
| @@ -62,7 +62,7 @@ struct bulk_cb_wrap { | |||
| 62 | 62 | ||
| 63 | #define US_BULK_CB_WRAP_LEN 31 | 63 | #define US_BULK_CB_WRAP_LEN 31 |
| 64 | #define US_BULK_CB_SIGN 0x43425355 /*spells out USBC */ | 64 | #define US_BULK_CB_SIGN 0x43425355 /*spells out USBC */ |
| 65 | #define US_BULK_FLAG_IN 1 | 65 | #define US_BULK_FLAG_IN (1 << 7) |
| 66 | #define US_BULK_FLAG_OUT 0 | 66 | #define US_BULK_FLAG_OUT 0 |
| 67 | 67 | ||
| 68 | /* command status wrapper */ | 68 | /* command status wrapper */ |