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| author | Alan Stern <stern@rowland.harvard.edu> | 2008-10-02 11:48:13 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2008-10-17 14:41:03 -0700 |
| commit | 9beeee6584b9aa4f9192055512411484a2a624df (patch) | |
| tree | 6eec55264d86791a1d4f61bdb9158cf9c720f7ce /drivers/usb/core | |
| parent | 2b70f07343389cb474235def00b021a645ede916 (diff) | |
| download | linux-stable-9beeee6584b9aa4f9192055512411484a2a624df.tar.gz linux-stable-9beeee6584b9aa4f9192055512411484a2a624df.tar.bz2 linux-stable-9beeee6584b9aa4f9192055512411484a2a624df.zip | |
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')
| -rw-r--r-- | drivers/usb/core/hcd.c | 4 | ||||
| -rw-r--r-- | drivers/usb/core/hcd.h | 6 |
2 files changed, 10 insertions, 0 deletions
diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c index c8035a8216bd..fc9018e72a09 100644 --- a/drivers/usb/core/hcd.c +++ b/drivers/usb/core/hcd.c @@ -81,6 +81,10 @@ /*-------------------------------------------------------------------------*/ +/* Keep track of which host controller drivers are loaded */ +unsigned long usb_hcds_loaded; +EXPORT_SYMBOL_GPL(usb_hcds_loaded); + /* host controllers we manage */ LIST_HEAD (usb_bus_list); EXPORT_SYMBOL_GPL (usb_bus_list); 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__ */ |