diff options
| author | Manu Gautam <mgautam@codeaurora.org> | 2016-08-12 16:55:26 +0530 |
|---|---|---|
| committer | Gerrit - the friendly Code Review server <code-review@localhost> | 2016-08-22 01:16:42 -0700 |
| commit | 84411ad344b44e61c1fe2e672b8ac30aabba2610 (patch) | |
| tree | 4b1211262087350d74cf02a04bc62335d0864c47 /include/linux/usb.h | |
| parent | c605e110ab18604981481a7b502da54640b620bc (diff) | |
usb: hcd: Add USB atomic notifier callback for HC died error
Add support for USB atomic notifier callbacks when host controller
drivers reports death of controller on some fatal error.
Current implementation doesn't help to recover from this condition.
Controller platform drivers can register for this callback and take
necessary steps to reset and add hcd again.
CRs-fixed: 1048766
Change-Id: Ie9064e669424096fee8c35cddccab29faf60cc6b
Signed-off-by: Manu Gautam <mgautam@codeaurora.org>
Diffstat (limited to 'include/linux/usb.h')
| -rw-r--r-- | include/linux/usb.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/usb.h b/include/linux/usb.h index 246945be000c..55240f9a3b94 100644 --- a/include/linux/usb.h +++ b/include/linux/usb.h @@ -1896,8 +1896,11 @@ static inline int usb_translate_errors(int error_code) #define USB_DEVICE_REMOVE 0x0002 #define USB_BUS_ADD 0x0003 #define USB_BUS_REMOVE 0x0004 +#define USB_BUS_DIED 0x0005 extern void usb_register_notify(struct notifier_block *nb); extern void usb_unregister_notify(struct notifier_block *nb); +extern void usb_register_atomic_notify(struct notifier_block *nb); +extern void usb_unregister_atomic_notify(struct notifier_block *nb); /* debugfs stuff */ extern struct dentry *usb_debug_root; |