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* USB: add ehci-ixp bus glueVladimir Barinov2008-02-01
| | | | | | | | | EHCI Glue driver for Intel IXP4XX EHCI USB controller Signed-off-by: Vladimir Barinov <vbarinov@ru.mvista.com> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: misc: legousbtower: semaphore to mutexDaniel Walker2008-02-01
| | | | | | | | | | | | | | | | The dev->sem conforms to mutex style usage. This patch converts it to use the struct mutex type, and new API. There is also a small style fix around this comment, /* unlock here as tower_delete frees dev */ Where I broke the line up to meet the 80 char limit. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: add ehci-ppc-of bus glue (device-tree aware)Valentine Barshak2008-02-01
| | | | | | | | | | | | | This adds device-tree-aware ehci-ppc-of driver. The code is based on the ehci-ppc-soc driver by Stefan Roese <sr@denx.de>. Signed-off-by: Valentine Barshak <vbarshak@ru.mvista.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Stefan Roese <sr@denx.de> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: pxa2xx_udc: use debugfs not procfsDmitry Baryshkov2008-02-01
| | | | | | | | | Use debugfs instead of /proc/driver/udc Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: at91_udc uses generic GPIO calls; minor cleanupDavid Brownell2008-02-01
| | | | | | | | | | | | | | | | | | | | | Various small at91_udc cleanups: - Use generic GPIO calls, not older platform-specific ones - Use gpio_request()/gpio_free() - Use VERBOSE_DEBUG convention, not older VERBOSE - Fix sparse complaint about parameter type (changed to gfp_t) - Add missing newline to some rarely-seen debug messages - Fix some old cleanup bugs on probe() fault paths Also add a mechanism whereby rm9200 gpios can drive the D+ pullup through an inverting transistor, based on a patch from Steve Birtles. Most UDC drivers supporting a GPIO based pullup should probably have such an option, but testing it requries such a board in hand! Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Cc: Steve Birtles <arm_kernel_development@micromark.net.cn> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: ohci-at91 uses generic GPIO callsDavid Brownell2008-02-01
| | | | | | | | | | | | | | Update the ohci-at91 bus glue to start understanding about the per-port power switch GPIOs it's given (on the sam9263-ek and potentially other boards). For the moment this just claims them and forces them active (assuming active-low power enables) whenever the HCD is loaded. The assumption is still that board setup configures the GPIOs. Using gpio_request() tracks actual usage and guards against conflict. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: Add documentation for USB suspend statistics.Sarah Sharp2008-02-01
| | | | | | | | | | | | | This documents two newly created files: /sys/bus/usb/device/.../power/connected_duration /sys/bus/usb/device/.../power/active_duration Documentation was placed in Documentation/ABI/testing, since that's where the documentation is for the other USB sysfs power files. Signed-off-by: Sarah Sharp <sarah.a.sharp@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: Export suspend statisticsSarah Sharp2008-02-01
| | | | | | | | | | | | | | | | | | | | | | | This patch exports two statistics to userspace: /sys/bus/usb/device/.../power/connected_duration /sys/bus/usb/device/.../power/active_duration connected_duration is the total time (in msec) that the device has been connected. active_duration is the total time the device has not been suspended. With these two statistics, tools like PowerTOP can calculate the percentage time that a device is active, i.e. not suspended or auto-suspended. Users can also use the active_duration to check if a device is actually autosuspended. Currently, they can set power/level to auto and power/autosuspend to a positive timeout, but there's no way to know from userspace if a device was actually autosuspended without looking at the dmesg output. These statistics will be useful in creating an automated userspace script to test autosuspend for USB devices. Signed-off-by: Sarah Sharp <sarah.a.sharp@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: sierra driver - add update dtr logicKevin Lloyd2008-02-01
| | | | | | | | | | | The following improvements were made: - Fixed control line issue where asserting DTR on ep5 would close ep2 - Added support for calc_num_ports (will help support future composite devices) Signed-off-by: Kevin Lloyd <linux@sierrawireless.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: ftdi_sio: Support for more JTAG adaptorsHarald Welte2008-02-01
| | | | | | | | | | | | | | | | | | | [PATCH] ftdi_sio: add support for more FTDI based JTAG adaptors There are more devices similar to the Olimex JTAG adaptor, in that the first port of the FT2232C is used for JTAG, and only the second port is available as UART. I have thus renamed ftdi_olimex_{probe,quirk} to ftdi_jtag_{probe,quirk} and added vendor/product ID's for the OpenMoko Neo1973 Debug Board as well as the OOCDlink device. I've also updated the KERN_INFO message sent to userspace to remove the word 'olimex' and an extra '\n' that was causing an empty line in dmesg. Signed-off-by: Harald Welte <laforge@openmoko.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: io_ti: clean up termios handlingAlan Cox2008-02-01
| | | | | | | | | | | | Don't pass NULL into termios functions when calling them internally Remove all the crap which then checks for NULL which can't occur now Clear CMSPAR as it is not supported Report the baud rate back to the caller properly (See FIXME someone with the docs) Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: ti_usb: termios cleanupsAlan Cox2008-02-01
| | | | | | | | | | | Remove internal NULL passing in termios code Remove all the if checks it causes Encode the baud rate back properly Clear CMSPAR as it is not supported Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: mos7720: clean up termiosAlan Cox2008-02-01
| | | | | | | | | | Remove lots of NULL checks that can no longer occur Encode the baud rate back into the termios (again someone with docs see FIXME to improve this further) Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: tosa_udc_use_gpio_vbus.patchDmitry Baryshkov2008-02-01
| | | | | | | | | Use gpio_vbus instead of udc_is_connected for udc on tosa. Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com> Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: fix HCD Kconfig goofageDavid Brownell2008-02-01
| | | | | | | | Add a missing dependency which goofs up the xconfig display. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: gadget: at91_udc minor fix (there is no number six)David Brownell2008-02-01
| | | | | | | | | | | Fix a small glitch noted by Yannick Cote. There is no endpoint number six, so if a (broken) host wrongly tried to change or read status of that endpoint, the driver could access reserved register space. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Cc: Yannick Cote <yanick@yanos.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: fix NULL pointer dereference on drivers/usb/serial/whiteheat.cOliver Neukum2008-02-01
| | | | | | | | | | | | | | | | | | | | | | | | Am Sonntag, 16. Dezember 2007 05:23:47 schrieb Andrew Morton: > On Sat, 15 Dec 2007 07:08:52 -0800 (PST) bugme-daemon@bugzilla.kernel.org wrote: > > > http://bugzilla.kernel.org/show_bug.cgi?id=9573 > > There's a null pointer dereference on drivers/usb/serial/whiteheat.c as > > follows: > > > > (1) line 613: the test "if (port->tty)" implies that null is a legal value > > for "port->tty" at that point > > > > (2) neither firm_open nor firm_purge initialize "port->tty" drivers/usb/serial/usb-serial::serial_open() sets port->tty The check for NULL is bogus. This patch removes the check. Signed-off-by: Oliver Neukum <oneukum@suse.de> Acked-by: Alan Cox <alan@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: gadget: ethernet error path potential oops fixDavid Brownell2008-02-01
| | | | | | | | | | | | Fix potential (never-observed) oops on rare error path, bugzilla #9594. Fix uses the same test as used earlier. Also make the adjacent "else" block look like an "else" block instead of hiding like a bug. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: ehci potential oops fix on ARC/TDI coresDavid Brownell2008-02-01
| | | | | | | | | | | | | Kernel bugzilla entry #9569 reports a potential OOPS in some code supporting the integrated root hub TT support used on ARC/TDI derived cores. (This seems to have been a longstanding issue.) This patch cleans up usage of urb->dev->tt to avoid that potential oops and also fixes some overly long lines. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: add Marvell Orion USB host supportTzachi Perelstein2008-02-01
| | | | | | | | | | | Some glue bits for the on-chip USB host controller in the Marvell Orion family of ARM SoCs, which is basically EHCI compatible. Signed-off-by: Tzachi Perelstein <tzachi@marvell.com> Reviewed-by: Lennert Buytenhek <buytenh@marvell.com> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: ehci-hcd: fix sparse warning about shadowing 'status' symbolMarcin Slusarz2008-02-01
| | | | | | | | | | fix warning: drivers/usb/host/ehci-hcd.c:832:8: warning: symbol 'status' shadows an earlier one drivers/usb/host/ehci-hcd.c:790:71: originally declared here Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: usbdevfs_urb: __user annotationMarcin Slusarz2008-02-01
| | | | | | | | | | | fix warning: drivers/usb/core/devio.c:1226:20: warning: incorrect type in assignment (different address spaces) drivers/usb/core/devio.c:1226:20: expected void *usercontext drivers/usb/core/devio.c:1226:20: got void [noderef] <asn:1>* Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: usb/storage/initializers.c: fix signedness differenceMarcin Slusarz2008-02-01
| | | | | | | | | | | | | | fix warnings: drivers/usb/storage/initializers.c:83:26: warning: incorrect type in argument 5 (different signedness) drivers/usb/storage/initializers.c:83:26: expected unsigned int *act_len drivers/usb/storage/initializers.c:83:26: got int *<noident> drivers/usb/storage/initializers.c:89:26: warning: incorrect type in argument 5 (different signedness) drivers/usb/storage/initializers.c:89:26: expected unsigned int *act_len drivers/usb/storage/initializers.c:89:26: got int *<noident> Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: PS3: Fix EHCI ISO transfer bugDavid Brownell2008-02-01
| | | | | | | | | | | | | | | | | | | | | | | | This adds a workaround for an issue reported with ISO transfers on some EHCI controllers, most recently with VIA KT800 and PS3 EHCI silicon. The issue is that the silicon doesn't necessarily seem to be done using ISO DMA descriptors (itd, sitd) when it marks them inactive. (One theory is that the ill-defined mechanism where hardware caches periodic transfer descriptors isn't invalidating their state...) With such silicon, quick re-use of those descriptors makes trouble. Waiting until the next frame seems to be a sufficient workaround. This patch ensures that the relevant descriptors aren't available for immediate re-use. It does so by not recycling them until after issuing the completion callback which would reuse them by enqueueing an URB and thus (re)allocating ISO DMA descriptors. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Acked-by: Geoff Levand <geoffrey.levand@am.sony.com> Cc: Masashi Kimoto <Masashi_Kimoto@hq.scei.sony.co.jp> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: Spelling fixesJoe Perches2008-02-01
| | | | | | Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: gadget: pxa2xx_udc supports inverted vbusDmitry Baryshkov2008-02-01
| | | | | | | | | | | Some boards (like e.g. Tosa) invert the VBUS-detection signal: it's low when a host is supplying VBUS, and high otherwise. Allow specifying whether gpio_vbus value is inverted. Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: testing driver: don't free a locked mutexAndrew Morton2008-02-01
| | | | | | | | | | | | | Dopey thing to do and lockdep will (or should) warn. Spotted by Daniel Walker. Cc: Matthias Kaehlcke <matthias.kaehlcke@gmail.com> Cc: Daniel Walker <dwalker@mvista.com> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: testing driver: convert dev->sem to mutexMatthias Kaehlcke2008-02-01
| | | | | | | | | USB testing driver: convert semaphore dev->sem to the mutex API Signed-off-by: Matthias Kaehlcke <matthias.kaehlcke@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: mon nopageNick Piggin2008-02-01
| | | | | | | | | | Convert USB mon driver from nopage to fault. Signed-off-by: Nick Piggin <npiggin@suse.de> Acked-by: Pete Zaitcev <zaitcev@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: mct232: speed, new termios and compliance cleanupsAlan Cox2008-02-01
| | | | | | | | Signed-off-by: Alan Cox <alan@redhat.com> Cc: Pete Zaitcev <zaitcev@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: keyspan_pda: clean up speed handlingAlan Cox2008-02-01
| | | | | | | Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: belkin_sa: clean up for new style termios and speed handling, plus styleAlan Cox2008-02-01
| | | | | | | | | A tester with actual hardware would be useful Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: pl2303: Add autosuspend support to pl2303 usb serial converter.Sarah Sharp2008-02-01
| | | | | | Signed-off-by: Sarah Sharp <saharabeara@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: pl2303: Move pl2303 vendor specific init to probe function.Sarah Sharp2008-02-01
| | | | | | | | | | | | Without this fix, the pl2303 usb-serial adapter would not suspend properly unless it had been opened first. A pl2303 type_1 chip will still break if the system is hibernated while the RS-232 connector is powered by another system. This was broken before, and a reset resume does not fix it. All other suspend and autosuspend scenarios work with ATEN pl2303 adaptors with HX and type_1 chips. Signed-off-by: Sarah Sharp <saharabeara@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: pl2303: Cleanup FISH and SOUP macros in pl2303 driver.Sarah Sharp2008-02-01
| | | | | | | | | Replace the FISH and SOUP macros that violated the macro guidelines in CodingStyle. Turn them into function calls with clearer variable names. Signed-off-by: Sarah Sharp <saharabeara@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: dummy_hcd: change the default power budgetAlan Stern2008-02-01
| | | | | | | | | This patch (as1025) changes the default power budget for dummy-hcd to 500 mA and makes it a preprocessor parameter for easier testing. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: EHCI: add separate IAA watchdog timerAlan Stern2008-02-01
| | | | | | | | | | | | | | | | This patch (as1028) was mostly written by David Brownell; I made only a few changes (extra log info and a small bug fix -- which might account for why David's version had to be reverted). It adds a new watchdog timer to the ehci-hcd driver to be used exclusively for detecting lost or missing IAA notifications. Previously a shared timer had been used, which may have led to some problems as reported by Christian Hoffmann. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Cc: David Brownell <david-b@pacbell.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: add usbfs stubs for suspend and resumeAlan Stern2008-02-01
| | | | | | | | | | | | This patch (as1022b) adds stub methods for suspend and resume to the usbfs driver. There isn't much they can do since there's no way to inform a user task about the events. But it's important to have the stubs, because an upcoming change to usbcore will automatically unbind drivers that don't have those methods when a suspend occurs. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: Edgeport USB Serial Converter: convert es_sem to mutexMatthias Kaehlcke2008-02-01
| | | | | | | | | Edgeport USB Serial Converter: convert semaphore es_sem to the mutex API Signed-off-by: Matthias Kaehlcke <matthias.kaehlcke@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: updates to usb_reset_composite_device()Alan Stern2008-02-01
| | | | | | | | | | | | | | | | | | | | | This patch (as1023) updates the code in usb_reset_composite_device(): Some local variable declarations are moved to inner loops. The interface locks are not acquired. This isn't necessary any more; its only reason was to prevent an interface from being suspended or resumed during the reset. But now interface power management is controlled by the USB device lock, not by the interface lock. The check for whether the interface is registered is removed. There doesn't seem to be any reason for checking; a driver for a non-registered interface deserves to be informed of device resets just as much as any other. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: repair USBDEVFS_CONNECT ioctlAlan Stern2008-02-01
| | | | | | | | | | | For as long as I've known about it, the USBDEVFS_CONNECT ioctl hasn't done what it's supposed to. The current code reprobes _all_ the unbound USB interfaces; this patch (as1021) makes it reprobe only the interface for which it was called. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* usb: Remove OHCI useless masking/unmasking of WDH interruptBenjamin Herrenschmidt2008-02-01
| | | | | | | | | | | | | | The OHCI driver's IRQ handler, while processing a WDH interrupt, masks and unmasks it. I believe this is both broken (the write may still be posted during the donelist processing it's trying to safeguard) and useless as this IRQ may not be reissued until it's acked (unless this legacy code is an uncommented workaround for some chip erratum). Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: convert ehci debug files to use debugfs instead of sysfsTony Jones2008-02-01
| | | | | | | | | | | We should not have multiple line files in sysfs, this moves the data to debugfs instead, like the UHCI driver. Signed-off-by: Tony Jones <tonyj@suse.de> Cc: Kay Sievers <kay.sievers@vrfy.org> Cc: David Brownell <david-b@pacbell.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: convert ohci debug files to use debugfs instead of sysfsTony Jones2008-02-01
| | | | | | | | | | | We should not have multiple line files in sysfs, this moves the data to debugfs instead, like the UHCI driver. Signed-off-by: Tony Jones <tonyj@suse.de> Cc: Kay Sievers <kay.sievers@vrfy.org> Cc: David Brownell <david-b@pacbell.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: always announce a device has been added to the systemGreg Kroah-Hartman2008-02-01
| | | | | | | | | | Distros (like SuSE) want to know this information, to make it easier to handle support issues. Might as well let everyone benefit from this. This is also enabled whenever CONFIG_USB_DEBUG is enabled, to help with debugging. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: dummy_hcd: don't register drivers on the platform busAlan Stern2008-02-01
| | | | | | | | | | | | | This patch (as1017) makes dummy_hcd behave more like the other USB peripheral controller drivers by no longer registering its gadget driver on the platform bus. Doing that has always been a mistake, since a usb_gadget_driver isn't a platform_driver. Instead the gadget driver is left unregistered in sysfs. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: force handover port to companion when hub_port_connect_change failsBalaji Rao2008-02-01
| | | | | | | | | | This patch hands over the port to the companion when the hub_port_connect_change fails. Signed-off-by: Balaji Rao <balajirrao@gmail.com> Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: usb peripheral controller driver oops avoidancePatrik Sevallius2008-02-01
| | | | | | | | | | | | | I'm having problem with oopses when rebooting, if I modprobe g_serial and rmmod g_serial and do a reboot I get an oops in device_shutdown(). The reason seems to be that usb_gadget_unregister_driver() doesn't do enough cleanup. With this at91_udc patch I don't get the oops. Signed-off-by: Patrik Sevallius <patrik.sevallius@enea.com> [ Same bug was in other peripheral controller drivers; fixed ] Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: cyberjack: remove a unnecessary variable.Andre Haupt2008-02-01
| | | | | | | | This also fixes a sparse warning that symbol 'result' shadows an earlier one. Signed-off-by: Andre Haupt <andre@bitwigglers.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: Prepare serial core for autosuspend.Sarah Sharp2008-02-01
| | | | | | | | | | | | | | | | | | | | | | | | | | Claim the interface for a USB to serial converter when the tty is open, and release the interface when the tty is closed. If a driver doesn't provide a resume function, use the generic resume instead. Make sure the generic resume function does not submit the URBs if we're coming back from autosuspend. On autoresume, we know that the open function will be called next, which will attempt to submit the URBs. If we submit them in the resume function, the open will fail. This works for: - autosuspend - suspending with the tty open or closed - hibernate with the tty closed A hibernate (or a suspend that causes the USB subsystem to lose power) has issues. If you have the tty open when you hibernate, a new tty will be created when the device re-enumerates during resume. Signed-off-by: Sarah Sharp <sarah.a.sharp@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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