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* USB: kobil_sct.h: checkpatch cleanupsGreg Kroah-Hartman2010-05-20
| | | | | | Minor whitespace cleanups to make checkpatch happy. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: kl5kusb105.h: checkpatch cleanupsGreg Kroah-Hartman2010-05-20
| | | | | | Minor whitespace cleanups to make checkpatch happy. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: io_edgeport: checkpatch cleanupsGreg Kroah-Hartman2010-05-20
| | | | | | Minor whitespace cleanups to make checkpatch happy. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: ftdi_sio: checkpatch cleanupsGreg Kroah-Hartman2010-05-20
| | | | | | Minor whitespace cleanups to make checkpatch happy. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: cypress_m8.h: checkpatch cleanupsGreg Kroah-Hartman2010-05-20
| | | | | | Minor whitespace cleanups to make checkpatch happy. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: belkin_sa.h: checkpatch cleanupsGreg Kroah-Hartman2010-05-20
| | | | | | Minor whitespace cleanups to make checkpatch happy. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: mct_u232.h: checkpatch cleanupsGreg Kroah-Hartman2010-05-20
| | | | | | Minor whitespace cleanups to make checkpatch happy. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: FHCI: cq_get() should check kfifo_out()'s return valueAnton Vorontsov2010-05-20
| | | | | | | | | | | | | | | | | | | | Since commit 7acd72eb85f1c7a15e8b5eb554994949241737f1 ("kfifo: rename kfifo_put... into kfifo_in... and kfifo_get... into kfifo_out..."), kfifo_out() is marked __must_check, and that causes gcc to produce lots of warnings like this: CC drivers/usb/host/fhci-mem.o In file included from drivers/usb/host/fhci-hcd.c:34: drivers/usb/host/fhci.h: In function 'cq_get': drivers/usb/host/fhci.h:520: warning: ignoring return value of 'kfifo_out', declared with attribute warn_unused_result ... This patch fixes the issue by properly checking the return value. Signed-off-by: Anton Vorontsov <avorontsov@mvista.com> Cc: stable <stable@kernel.org> [.33 and .34] Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: cp210x: remove redundant disconnect()Johan Hovold2010-05-20
| | | | | | | | | Remove cp210x_disconnect which is used to kill traffic although this is already handled by the generic framework. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: io_edgeport: Use kzallocJulia Lawall2010-05-20
| | | | | | | | | | | | | | | | | | | | | | | | Use kzalloc rather than the combination of kmalloc and memset. The semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression x,size,flags; statement S; @@ -x = kmalloc(size,flags); +x = kzalloc(size,flags); if (x == NULL) S -memset(x, 0, size); // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: ipw: reimplement using generic frameworkJohan Hovold2010-05-20
| | | | | | | | Compile-only tested. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: ipw: remove dummy port_probe and port_removeJohan Hovold2010-05-20
| | | | | | Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: ipw: clean up dtr-rts handlingJohan Hovold2010-05-20
| | | | | | | | No need to raise dtr/rts in open as this is taken care of by tty layer. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: ir-usb: reimplement using generic frameworkJohan Hovold2010-05-20
| | | | | | | | Compile-only tested. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: ir-usb: fix set_termios raceJohan Hovold2010-05-20
| | | | | | | | | | | | Use dynamically allocated urb for baudrate changes rather than unconditionally submitting the port write urb which may already be in use. Compile-only tested. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: ir-usb: allow custom bulk buffer size without reallocationJohan Hovold2010-05-20
| | | | | | | | | | Use usb_serial_driver bulk_in_size and bulk_out_size to make sure buffers of appropriate sizes are allocated in the first place rather than reallocating them at every open. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: ir-usb: fix double freeJohan Hovold2010-05-20
| | | | | | | | | | If the user specifies a custom bulk buffer size we get a double free at port release. Cc: stable <stable@kernel.org> Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: EHCI: fix controller wakeup flag settings during suspendAlan Stern2010-05-20
| | | | | | | | | | | | | | | | | | | | | | | This patch (as1380) fixes a bug in the wakeup settings for EHCI host controllers. When the controller is suspended, if it isn't enabled for remote wakeup then we have to turn off all the port wakeup flags. Disabling PCI PME# isn't good enough, because some systems (Intel) evidently use alternate wakeup signalling paths. In addition, the patch improves the handling of the Intel Moorestown hardware by performing various power-up and power-down delays just once instead of once for each port (i.e., the delays are moved outside of the port loops). This requires extra code, but the total delay time is reduced. There are also a few additional minor cleanups. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Reported-by: Ondrej Zary <linux@rainbow-software.org> CC: Alek Du <alek.du@intel.com> CC: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: EHCI: clear PHCD before resumingAlek Du2010-05-20
| | | | | | | | | | | | | This is a bug fix for PHCD (phy clock disable) low power feature: After PHCD is set, any write to PORTSC register is illegal, so when resume ports, clear PHCD bit first. Signed-off-by: Alek Du <alek.du@intel.com> Cc: David Brownell <dbrownell@users.sourceforge.net> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: fix functionfs for CONFIG_NET disabledRandy Dunlap2010-05-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix functionfs build to handle CONFIG_NET not enabled, to prevent these build errors: ERROR: "netif_carrier_on" [drivers/usb/gadget/g_ffs.ko] undefined! ERROR: "netif_carrier_off" [drivers/usb/gadget/g_ffs.ko] undefined! ERROR: "skb_realloc_headroom" [drivers/usb/gadget/g_ffs.ko] undefined! ERROR: "skb_trim" [drivers/usb/gadget/g_ffs.ko] undefined! ERROR: "netif_rx" [drivers/usb/gadget/g_ffs.ko] undefined! ERROR: "alloc_etherdev_mq" [drivers/usb/gadget/g_ffs.ko] undefined! ERROR: "ethtool_op_get_link" [drivers/usb/gadget/g_ffs.ko] undefined! ERROR: "free_netdev" [drivers/usb/gadget/g_ffs.ko] undefined! ERROR: "register_netdev" [drivers/usb/gadget/g_ffs.ko] undefined! ERROR: "skb_push" [drivers/usb/gadget/g_ffs.ko] undefined! ERROR: "skb_pull" [drivers/usb/gadget/g_ffs.ko] undefined! ERROR: "dev_kfree_skb_any" [drivers/usb/gadget/g_ffs.ko] undefined! ERROR: "skb_queue_tail" [drivers/usb/gadget/g_ffs.ko] undefined! ERROR: "__alloc_skb" [drivers/usb/gadget/g_ffs.ko] undefined! ERROR: "eth_type_trans" [drivers/usb/gadget/g_ffs.ko] undefined! ERROR: "eth_validate_addr" [drivers/usb/gadget/g_ffs.ko] undefined! ERROR: "skb_dequeue" [drivers/usb/gadget/g_ffs.ko] undefined! ERROR: "unregister_netdev" [drivers/usb/gadget/g_ffs.ko] undefined! ERROR: "__netif_schedule" [drivers/usb/gadget/g_ffs.ko] undefined! ERROR: "skb_put" [drivers/usb/gadget/g_ffs.ko] undefined! ERROR: "eth_mac_addr" [drivers/usb/gadget/g_ffs.ko] undefined! ERROR: "dev_get_stats" [drivers/usb/gadget/g_ffs.ko] undefined! Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Acked-by: Michał Nazarewicz <m.nazarewicz@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: xhci: Remove the arbitrary limit of 15 xHCI portsWilliam Gulland2010-05-20
| | | | | | | | | | Our virtual xHCI device can have as many ports as we like - I've tested this patch with 31. Signed-off-by: William Gulland <wgulland@vmware.com> Cc: Sarah Sharp <sarah.a.sharp@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: remove usb_find_deviceMing Lei2010-05-20
| | | | | | | | | | | | | | | | | | | | Now on one uses this function and it seems useless, so remove usb_find_device. [tom@tom linux-2.6-next]$ grep -r -n -I usb_find_device ./ drivers/media/dvb/dvb-usb/dvb-usb-init.c:160:static struct dvb_usb_device_description * dvb_usb_find_device(struct usb_device *udev,struct dvb_usb_device_properties *props, int *cold) drivers/media/dvb/dvb-usb/dvb-usb-init.c:230: if ((desc = dvb_usb_find_device(udev,props,&cold)) == NULL) { drivers/usb/core/usb.c:630: * usb_find_device - find a specific usb device in the system drivers/usb/core/usb.c:642:struct usb_device *usb_find_device(u16 vendor_id, u16 product_id) Signed-off-by: Ming Lei <tom.leiming@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: gadget: f_mass_storage: fix in error recoveryMichal Nazarewicz2010-05-20
| | | | | | | | | | | | | | | | | In to places in fsg_common_init() an unconditional call to kfree() on common was performed in error recovery which is not a valid behaviour since fsg_common structure is not always allocated by fsg_common_init(). To fix, the calls has been replaced with a goto to a proper error recovery which does the correct thing. Also, refactored fsg_common_release() function. Signed-off-by: Michal Nazarewicz <mina86@mina86.com> Reviewed-by: Viral Mehta <viral.mehta@lntinfotech.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: add missing "{}" in map_urb_for_dmaMing Lei2010-05-20
| | | | | | | | | | | | Obviously, {} is needed in the branch of "else if (hcd->driver->flags & HCD_LOCAL_MEM)" for handling of setup packet mapping. Signed-off-by: Ming Lei <tom.leiming@gmail.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: ehci-omap: Fix resume failures after bus suspendAnand Gadiyar2010-05-20
| | | | | | | | | | | | | | | | | | | | | An undocumented "feature" in the OMAP3 EHCI controller causes suspended ports to be taken out of suspend when the USBCMD.Run/Stop bit is cleared (this bit is normally cleared when ehci_bus_suspend is called). This "feature" breaks suspend-resume if the root-hub is allowed to suspend. (The controller thinks it is in resume, and the PHY thinks it is still in suspend). There is an undocumented register bit that can be used to disable this feature and restore normal behavior. Set this bit so suspend-resume can work normally. Tested on OMAP3 SDPs with the NXP ISP1504 and NXP ISP1703 PHYs. Signed-off-by: Anand Gadiyar <gadiyar@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: fix interface runtime-PM settingsAlan Stern2010-05-20
| | | | | | | | | | | | | | | This patch (as1379) reworks the logic for handling USB interface runtime-PM settings -- hopefully it's right this time! The problem is that when a driver is unbound or binding fails, runtime PM for the interface always gets disabled. But pm_runtime_disable() nests, so it shouldn't be called unless the interface was previously enabled for runtime PM. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Reported-by: Rob Duncan <Robert.Duncan@exar.com> Tested-by: Rob Duncan <Robert.Duncan@exar.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: xHCI: Fix wrong usage of macro TRB_TYPEAndiry Xu2010-05-20
| | | | | | | | | | | Macro TRB_TYPE is misused in some places. Fix the wrong usage. Signed-off-by: Andiry Xu <andiry.xu@amd.com> Cc: stable <stable@kernel.org> Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: xhci: Transfer ring link TRB activation change.John Youn2010-05-20
| | | | | | | | | | | Change transfer ring behavior to not follow/activate link TRBs until active TRBs are queued after it. This change affects the behavior when a TD ends just before a link TRB. Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: gadget: f_fs.c needs to include pagemap.hRandy Dunlap2010-05-20
| | | | | | | | | | | | Fix g_ffs build error, add a needed header file: drivers/usb/gadget/f_fs.c:1064:error: 'PAGE_CACHE_SIZE' undeclared (first use in this function) drivers/usb/gadget/f_fs.c:1065:error: 'PAGE_CACHE_SHIFT' undeclared (first use in this function) Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Acked-by: Michał Nazarewicz <m.nazarewicz@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: ohci: Add Kconfig entries for ohci-omap3Anand Gadiyar2010-05-20
| | | | | | | | | | | | | | | | | On OMAP systems, we have two different OHCI controllers. The legacy one is present in OMAP1/2 chips, and the newer one comes bundled as a companion to the EHCI controller on OMAP3 and newer chips. We may have multi-omap configurations where OMAP2 and OMAP3 support may be enabled in the same kernel, and need a mechanism to keep both drivers around. This patch adds a Kconfig entry for each of these drivers. Signed-off-by: Anand Gadiyar <gadiyar@ti.com> Cc: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: ohci: introduce omap3 ohci-hcd driverAnand Gadiyar2010-05-20
| | | | | | | | | | | | | | | | | | Add support for the OHCI controller present in OMAP3 and newer chips. The code is mostly based off the ehci-omap.c driver. Some of it is common to both drivers and will eventually need to be factored out to platform init files. In its current state, the driver cannot co-exist with the ehci-omap driver, and this will be fixed in later versions. The second driver to be loaded will overwrite settings made by the other. For now, this driver should allow the few users of OMAP3 OHCI to get going. Signed-off-by: Anand Gadiyar <gadiyar@ti.com> Cc: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: mxc: gadget: remove 60mhz clock requirement for freescale mx51 usb coreDinh Nguyen2010-05-20
| | | | | | | | | renamed fsl_mx3_udc.c -> fsl_mxc_udc.c for mx51, usb core is clocked from sources that are not 60mhz. Signed-off-by: Dinh Nguyen <Dinh.Nguyen@freescale.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: ftdi_sio: clean up line-status handlingJohan Hovold2010-05-20
| | | | | | | | | | | | | | | Reverse priority of errors reported to ldisc so that it matches that of other serial drivers (break takes precedence over parity, which takes precedence over framing errors). Also make sure overrun errors are handled as in other drivers, that is, an overrun error is always reported and is not associated with any received character (instead a NULL character with the TTY_OVERRUN flag set is inserted). Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: pl2303: use tty_insert_flip_string_fixed_flagJohan Hovold2010-05-20
| | | | | | | | | Use tty_insert_flip_string_fixed_flag to report errors to line discipline. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: ftdi_sio: use tty_insert_flip_string_fixed_flagJohan Hovold2010-05-20
| | | | | | | | | Use tty_insert_flip_string_fixed_flag to report errors to line discipline. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: isp1760: Soften DW3 X/transaction error bit handlingAnton Vorontsov2010-05-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There were some reports[1] of isp1760 USB driver malfunctioning with high speed devices, noticed on Blackfin and PowerPC targets. These reports indicated that the original Philips 'pehcd'[2] driver worked fine. We've noticed the same issue with an ARM RealView platform. This happens under load (with only some mass storage devices, not all, just as in another report[3]): error bit is set in DW3 error bit is set in DW3 error bit is set in DW3 usb 1-1.2: device descriptor read/64, error -32 It appears that the 'pehcd' driver checks the X bit only if the transaction is halted (H bit), otherwise the error is so far insignificant. The ISP176x chips were modeled after EHCI, and EHCI spec says (thanks to Alan Stern for pointing out): "Transaction errors cause the status field to be updated to reflect the type of error, but the transaction continues to be retried until the Active bit is set to 0. When the error counter reaches 0, the Halt bit is set and the Active bit is cleared." So, just as the original Philips driver, isp1760 must report the error only if the transaction error and the halt bits are set. [1] http://markmail.org/message/lx4qrlbrs2uhcnly [2] svn co svn://sources.blackfin.uclinux.org/linux-kernel/trunk/drivers/usb/host -r 5494 See pehci.c:pehci_hcd_update_error_status(). [3] http://blackfin.uclinux.org/gf/tracker/5148 Signed-off-by: Anton Vorontsov <avorontsov@mvista.com> Acked-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: usbcore: Do not disable USB3 protocol ports in hub_activate()Andiry Xu2010-05-20
| | | | | | | | | | | | | When USB3 protocol port detects an USB3.0 device attach, the port will automatically transition to the Enabled state upon the completion of successful link training. Do not disable USB3 protocol ports in hub_activate(), or USB3.0 device will fail to be recognized if xHCI bus power management is implemented. Signed-off-by: Andiry Xu <andiry.xu@amd.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: ark3116: reimplement read processingJohan Hovold2010-05-20
| | | | | | | | | | | Use process_read_urb to implement read processing. Compile-only tested. Signed-off-by: Johan Hovold <jhovold@gmail.com> Acked-by: Bart Hartgers <bart.hartgers@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: tty: fix incorrect use of tty_insert_flip_string_fixed_flagJohan Hovold2010-05-20
| | | | | | | | | | | | | Fix regression introduced by commit a108bfcb372d8c4452701039308fb95747911c59 (USB: tty: Prune uses of tty_request_room in the USB layer) which broke three drivers (cypress_m8, digi_acceleport and spcp8x5) through incorrect use of tty_insert_flip_string_fixed_flag. Signed-off-by: Johan Hovold <jhovold@gmail.com> Cc: stable <stable@kernel.org> [.34] Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: gadget: Allow function access to device ID data during bind()Robert Lukassen2010-05-20
| | | | | | | | | | | | | | | | | | This is a patch that makes sure that the device ID data (idVendor, idProduct and bcdDevice) are assigned to the descriptor in the cdev structure *before* the composite gadget starts binding. This allows the composite driver, and all the composite functions it uses, access to that data. In one of the composite functions we created, we needed to register an input device and wanted to use the idVendor, idProduct and bcdDevice codes to properly initialize the id field of the input device. We could not do that because the idVendor, idProduct and bcdDevice values were only set in the cdec structure *after* the composite->bind(cdev) call. Signed-off-by: Robert Lukassen <robert.lukassen@tomtom.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: fix u132-hcd code/data warningRandy Dunlap2010-05-20
| | | | | | | | | Fix gcc warning on mixed declarations/code: drivers/usb/host/u132-hcd.c:1450: warning: ISO C90 forbids mixed declarations and code Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: xhci: Set stream ID to 0 after cleaning up stalls.Sarah Sharp2010-05-20
| | | | | | | | | After using state stored in xhci_virt_ep to clean up a stalled endpoint, be sure to set the stalled stream ID back to 0. Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: g_ffs: the FunctionFS gadget driverMichal Nazarewicz2010-05-20
| | | | | | | | | | | | | | | The Function Filesystem (FunctioFS) lets one create USB composite functions in user space in the same way as GadgetFS lets one create USB gadgets in user space. This allows creation of composite gadgets such that some of the functions are implemented in kernel space (for instance Ethernet, serial or mass storage) and other are implemented in user space. Signed-off-by: Michal Nazarewicz <m.nazarewicz@samsung.com> Cc: Kyungmin Park <kyungmin.park@samsung.com> Cc: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: f_fs: the FunctionFS driverMichal Nazarewicz2010-05-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The FunctionFS is a USB composite function that can be used with the composite framework to create an USB gadget. >From kernel point of view it is just a composite function with some unique behaviour. It may be added to an USB configuration only after the user space driver has registered by writing descriptors and strings (the user space program has to provide the same information that kernel level composite functions provide when they are added to the configuration). >From user space point of view it is a file system which when mounted provide an "ep0" file. User space driver need to write descriptors and strings to that file. It does not need to worry about endpoints, interfaces or strings numbers but simply provide descriptors such as if the function was the only one (endpoints and strings numbers starting from one and interface numbers starting from core). The FunctionFS changes numbers of those as needed also handling situation when numbers differ in different configurations. When descriptors and strings are written "ep#" files appear (one for each declared endpoint) which handle communication on a single endpoint. Again, FunctionFS takes care of the real numbers and changing of the configuration (which means that "ep1" file may be really mapped to (say) endpoint 3 (and when configuration changes to (say) endpoint 2)). "ep0" is used for receiving events and handling setup requests. When all files are closed the function disables itself. Signed-off-by: Michal Nazarewicz <m.nazarewicz@samsung.com> Cc: Kyungmin Park <kyungmin.park@samsung.com> Cc: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: gadget: __init and __exit tags removedMichal Nazarewicz2010-05-20
| | | | | | | | | | | | | | | | | __init, __initdata and __exit tags have have been removed from various files to make it possible for gadgets that do not use the __init/__exit tags to use those. Files in question are related to: * the core composite framework, * the mass storage function (fixing a section mismatch) and * ethernet driver (ACM, ECM, RNDIS). Signed-off-by: Michal Nazarewicz <m.nazarewicz@samsung.com> Cc: Kyungmin Park <kyungmin.park@samsung.com> Cc: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: gadget webcam: depends on VIDEO_DEVRandy Dunlap2010-05-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | g_webcam uses v4l[2] interfaces, so it should depend on VIDEO_DEV. ERROR: "v4l2_event_unsubscribe" [drivers/usb/gadget/g_webcam.ko] undefined! ERROR: "v4l2_event_queue" [drivers/usb/gadget/g_webcam.ko] undefined! ERROR: "video_device_release" [drivers/usb/gadget/g_webcam.ko] undefined! ERROR: "video_usercopy" [drivers/usb/gadget/g_webcam.ko] undefined! ERROR: "v4l2_event_dequeue" [drivers/usb/gadget/g_webcam.ko] undefined! ERROR: "video_register_device" [drivers/usb/gadget/g_webcam.ko] undefined! ERROR: "video_device_alloc" [drivers/usb/gadget/g_webcam.ko] undefined! ERROR: "v4l2_event_subscribe" [drivers/usb/gadget/g_webcam.ko] undefined! ERROR: "video_unregister_device" [drivers/usb/gadget/g_webcam.ko] ndefined! ERROR: "v4l2_event_pending" [drivers/usb/gadget/g_webcam.ko] undefined! ERROR: "v4l2_fh_init" [drivers/usb/gadget/g_webcam.ko] undefined! ERROR: "v4l2_event_init" [drivers/usb/gadget/g_webcam.ko] undefined! ERROR: "video_devdata" [drivers/usb/gadget/g_webcam.ko] undefined! ERROR: "v4l2_event_alloc" [drivers/usb/gadget/g_webcam.ko] undefined! ERROR: "v4l2_fh_add" [drivers/usb/gadget/g_webcam.ko] undefined! ERROR: "v4l2_fh_del" [drivers/usb/gadget/g_webcam.ko] undefined! ERROR: "v4l2_fh_exit" [drivers/usb/gadget/g_webcam.ko] undefined! Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: serial: remove multi-urb write from generic driverJohan Hovold2010-05-20
| | | | | | | | | | | | | | | | | | | Remove multi-urb write from the generic driver and simplify the prepare_write_buffer prototype: int (*prepare_write_buffer)(struct usb_serial_port *port, void *dest, size_t size); The default implementation simply fills dest with data from port write fifo but drivers can override it if they need to process the outgoing data (e.g. add headers). Turn ftdi_sio into a generic fifo-based driver, which lowers CPU usage significantly for small writes while retaining maximum throughput. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: serial: reimplement generic fifo-based writesJohan Hovold2010-05-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Reimplement fifo-based writes in the generic driver using a multiple pre-allocated urb scheme. In contrast to multi-urb writes, no allocations (of urbs or buffers) are made during run-time and there is less pressure on the host stack queues as currently only two urbs are used (implementation is generic and can handle more than two urbs as well, though). Initial tests using ftdi_sio show that the implementation achieves the same (maximum) throughput at high baudrates as multi-urb writes. The CPU usage is much lower than for multi-urb writes for small write requests and only slightly higher for large (e.g. 2k) requests (due to extra copy via fifo?). Also outperforms multi-urb writes for small write requests on an embedded arm-9 system, where multi-urb writes are CPU-bound at high baudrates (perf reveals that a lot of time is spent in the host stack enqueue function -- could perhaps be a bug as well). Keeping the original write_urb, buffer and flag for now as there are other drivers depending on them. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: aircable: rewrite using generic read and write implementationsJohan Hovold2010-05-20
| | | | | | | | | | | | | | | | | Kill circular buffers for tx and rx as well as read work thread, and switch to generic kfifo-based write implementation. This is an example of how prepare_write_buffer and process_read_urb can be used to handle protocols with packet headers. Please note the diffstat which shows that the same functionality is now provided using only a tenth of the code (including whitespace and comments, though). Tested-by: Naranjo, Manuel Francisco <naranjo.manuel@gmail.com> Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: ftdi_sio: clean up SIO write supportJohan Hovold2010-05-20
| | | | | | | | | The original SIO devices require a control byte for every packet written. Clean up the unnecessarily messy implementation of this. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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