diff options
| author | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-10-12 15:49:10 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-10-12 15:49:10 -0700 |
| commit | 117494a1b65183f0e3fcc817b07944bc5c465050 (patch) | |
| tree | c375cf06bdf869f2b870fe61808b060c4fadab45 /drivers/usb/core/generic.c | |
| parent | 4d5709a7b7d54fc5882d2943a14988a92d48c00a (diff) | |
| parent | d1aa3e6aa8edfeb864af7c930523d9e588b28bea (diff) | |
Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/usb-2.6
* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/usb-2.6: (142 commits)
USB: fix race in autosuspend reschedule
atmel_usba_udc: Keep track of the device status
USB: Nikon D40X unusual_devs entry
USB: serial core should respect driver requirements
USB: documentation for USB power management
USB: skip autosuspended devices during system resume
USB: mutual exclusion for EHCI init and port resets
USB: allow usbstorage to have LUNS greater than 2Tb
USB: Adding support for SHARP WS011SH to ipaq.c
USB: add atmel_usba_udc driver
USB: ohci SSB bus glue
USB: ehci build fixes on au1xxx, ppc-soc
USB: add runtime frame_no quirk for big-endian OHCI
USB: funsoft: Fix termios
USB: visor: termios bits
USB: unusual_devs entry for Nikon DSC D2Xs
USB: re-remove <linux/usb_sl811.h>
USB: move <linux/usb_gadget.h> to <linux/usb/gadget.h>
USB: Export URB statistics for powertop
USB: serial gadget: Disable endpoints on unload
...
Diffstat (limited to 'drivers/usb/core/generic.c')
| -rw-r--r-- | drivers/usb/core/generic.c | 26 |
1 files changed, 17 insertions, 9 deletions
diff --git a/drivers/usb/core/generic.c b/drivers/usb/core/generic.c index b2fc2b11525..c1cb94e9f24 100644 --- a/drivers/usb/core/generic.c +++ b/drivers/usb/core/generic.c @@ -40,7 +40,7 @@ static int is_activesync(struct usb_interface_descriptor *desc) && desc->bInterfaceProtocol == 1; } -static int choose_configuration(struct usb_device *udev) +int usb_choose_configuration(struct usb_device *udev) { int i; int num_configs; @@ -161,17 +161,20 @@ static int generic_probe(struct usb_device *udev) /* Choose and set the configuration. This registers the interfaces * with the driver core and lets interface drivers bind to them. */ - c = choose_configuration(udev); - if (c >= 0) { - err = usb_set_configuration(udev, c); - if (err) { - dev_err(&udev->dev, "can't set config #%d, error %d\n", + if (udev->authorized == 0) + dev_err(&udev->dev, "Device is not authorized for usage\n"); + else { + c = usb_choose_configuration(udev); + if (c >= 0) { + err = usb_set_configuration(udev, c); + if (err) { + dev_err(&udev->dev, "can't set config #%d, error %d\n", c, err); - /* This need not be fatal. The user can try to - * set other configurations. */ + /* This need not be fatal. The user can try to + * set other configurations. */ + } } } - /* USB device state == configured ... usable */ usb_notify_add_device(udev); @@ -203,8 +206,13 @@ static int generic_suspend(struct usb_device *udev, pm_message_t msg) */ if (!udev->parent) rc = hcd_bus_suspend(udev); + + /* Non-root devices don't need to do anything for FREEZE or PRETHAW */ + else if (msg.event == PM_EVENT_FREEZE || msg.event == PM_EVENT_PRETHAW) + rc = 0; else rc = usb_port_suspend(udev); + return rc; } |