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authorAlan Stern <stern@rowland.harvard.edu>2013-10-11 19:29:22 +0400
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-10-12 03:45:43 +0400
commit7c4bb942986fc2aa7ca4fccfed665d24525a0e21 (patch)
tree097e7f0bcf40b66b367df012e2a004c0c69d28e8 /include/linux/usb
parentd0ce5c6b9208c79fc725c578eebdeb5724faf17d (diff)
downloadlinux-7c4bb942986fc2aa7ca4fccfed665d24525a0e21.tar.xz
USB: add a private-data pointer to struct usb_tt
For improved scheduling of transfers through a Transaction Translator, ehci-hcd will need to store a bunch of information associated with the FS/LS bus on the downstream side of the TT. This patch adds a pointer for such HCD-private data to the usb_tt structure. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/usb')
-rw-r--r--include/linux/usb/hcd.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/usb/hcd.h b/include/linux/usb/hcd.h
index dbe3cd19ffd8..b8aba196f7f1 100644
--- a/include/linux/usb/hcd.h
+++ b/include/linux/usb/hcd.h
@@ -506,6 +506,7 @@ struct usb_tt {
struct usb_device *hub; /* upstream highspeed hub */
int multi; /* true means one TT per port */
unsigned think_time; /* think time in ns */
+ void *hcpriv; /* HCD private data */
/* for control/bulk error recovery (CLEAR_TT_BUFFER) */
spinlock_t lock;