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authorAlan Stern2008-10-02 17:48:13 +0200
committerGreg Kroah-Hartman2008-10-17 23:41:03 +0200
commit9beeee6584b9aa4f9192055512411484a2a624df (patch)
tree6eec55264d86791a1d4f61bdb9158cf9c720f7ce /drivers/usb/core/hcd.h
parentUSB: EHCI, OHCI, UHCI: remove version numbers (diff)
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USB: EHCI: log a warning if ehci-hcd is not loaded first
This patch (as1139) adds a warning to the system log whenever ehci-hcd is loaded after ohci-hcd or uhci-hcd. Nowadays most distributions are pretty good about not doing this; maybe the warning will help convince anyone still doing it wrong. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Cc: stable <stable@kernel.org> [2.6.27] Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/core/hcd.h')
-rw-r--r--drivers/usb/core/hcd.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/usb/core/hcd.h b/drivers/usb/core/hcd.h
index e710ce04e228..2dcde61c465e 100644
--- a/drivers/usb/core/hcd.h
+++ b/drivers/usb/core/hcd.h
@@ -482,4 +482,10 @@ static inline void usbmon_urb_complete(struct usb_bus *bus, struct urb *urb,
*/
extern struct rw_semaphore ehci_cf_port_reset_rwsem;
+/* Keep track of which host controller drivers are loaded */
+#define USB_UHCI_LOADED 0
+#define USB_OHCI_LOADED 1
+#define USB_EHCI_LOADED 2
+extern unsigned long usb_hcds_loaded;
+
#endif /* __KERNEL__ */