Hello.
On 19-05-2012 6:04, Randy Dunlap wrote:
From: Randy Dunlap<[email protected]>
Add stubs for some usb core functions when CONFIG_USB
is not enabled. This fixes these comedi build errors:
ERROR: "usb_deregister" [drivers/staging/comedi/comedi.ko] undefined!
ERROR: "usb_register_driver" [drivers/staging/comedi/comedi.ko] undefined!
Signed-off-by: Randy Dunlap<[email protected]>
---
I am only adding the stubs that are needed for comedi to build.
I expect that more stubs will be needed as more build errors are
found. It seems to me that linux/usb.h might need more (major)
moving of lines to support more stubs in the future.
Documentation/usb/error-codes.txt | 2 ++
include/linux/usb.h | 24 +++++++++++++++++++++++-
2 files changed, 25 insertions(+), 1 deletion(-)
--- linux-next-20120518.orig/include/linux/usb.h
+++ linux-next-20120518/include/linux/usb.h
@@ -10,7 +10,7 @@
#ifdef __KERNEL__
-#include<linux/errno.h> /* for -ENODEV */
+#include<linux/errno.h> /* for -ENODEV, -ENOSYS */
#include<linux/delay.h> /* for mdelay() */
#include<linux/interrupt.h> /* for in_interrupt() */
#include<linux/list.h> /* for struct list_head */
@@ -515,6 +515,8 @@ static inline struct usb_device *interfa
return to_usb_device(intf->dev.parent);
}
+#if defined(CONFIG_USB) || defined(CONFIG_USB_MODULE)
You can use IS_ENABLED(CONFIG_USB) instead of these two now.
WBR, Sergei
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