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2024-02-19usb: core: constify the struct device_type usageRicardo B. Marliere1-1/+1
Since commit aed65af1cc2f ("drivers: make device_type const"), the driver core can properly handle constant struct device_type. Move the usb_device_type, usb_if_device_type, usb_ep_device_type and usb_port_device_type variables to be constant structures as well, placing it into read-only memory which can not be modified at runtime. Signed-off-by: Ricardo B. Marliere <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2021-03-10usb: common: add function to get interval expressed in us unitChunfeng Yun1-31/+4
Add a new function to convert bInterval into the time expressed in 1us unit. Signed-off-by: Chunfeng Yun <[email protected]> Link: https://lore.kernel.org/r/25c8a09b055f716c1e5bf11fea72c3418f844482.1615170625.git.chunfeng.yun@mediatek.com Signed-off-by: Greg Kroah-Hartman <[email protected]>
2020-11-26USB: core: Constify static attribute_group structsRikard Falkeborn1-1/+1
These are never modified, so make them const to allow the compiler to put them in read-only memory. Done with the help of coccinelle. Signed-off-by: Rikard Falkeborn <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2017-11-03USB: core: move existing SPDX tags to top of the fileGreg Kroah-Hartman1-1/+1
To match the rest of the kernel, the SPDX tags for the drivers/usb/core/ files are moved to the first line of the file. This makes it more obvious the tag is present as well as making it match the other 12k files in the tree with this location. It also uses // to match the "expected style" as well. Signed-off-by: Greg Kroah-Hartman <[email protected]>
2016-11-18Merge tag 'usb-for-v4.10' of ↵Greg Kroah-Hartman1-2/+1
git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next Felipe writes: usb: patches for v4.10 merge window One big merge this time with a total of 166 non-merge commits. Most of the work, by far, is on dwc2 this time (68.2%) with dwc3 a far second (22.5%). The remaining 9.3% are scattered on gadget drivers. The most important changes for dwc2 are the peripheral side DMA support implemented by Synopsys folks and support for the new IOT dwc2 compatible core from Synopsys. In dwc3 land we have support for high-bandwidth, high-speed isochronous endpoints and some non-critical fixes for large scatter lists. Apart from these, we have our usual set of cleanups, non-critical fixes, etc.
2016-11-03usb: core: endpoint: remove unnecessary & operationFelipe Balbi1-2/+1
Now that usb_endpoint_maxp() only returns the lowest 11 bits from wMaxPacketSize, we can remove the & operation from this driver. Cc: Greg Kroah-Hartman <[email protected]> Acked-by: Greg Kroah-Hartman <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2016-10-29USB: core: add missing license information to some filesGreg Kroah-Hartman1-1/+3
Some of the USB core files were missing explicit license information. As all files in the kernel tree are implicitly licensed under the GPLv2-only, be explicit in case someone get confused looking at individual files by using the SPDX nomenclature. Signed-off-by: Greg Kroah-Hartman <[email protected]>
2015-08-14usb: endpoint: convert spaces to tabsKris Borer1-1/+1
Fix one occurrence of the checkpatch error: ERROR: code indent should use tabs where possible Signed-off-by: Kris Borer <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2013-08-25USB: core: be specific about attribute permissionsGreg Kroah-Hartman1-18/+18
Instead of having to audit all sysfs attributes, to ensure we get them right, use the default macros the driver core provides us (read-only, read-write) to make the code simpler, and to prevent any mistakes from ever happening. Signed-off-by: Greg Kroah-Hartman <[email protected]>
2013-07-24USB: remove unneeded idr.h includeGreg Kroah-Hartman1-1/+0
None of these USB files need idr.h, so don't include it. Cc: Alexander Shishkin <[email protected]> Reviewed-by: Felipe Balbi <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2012-08-20usb/endpoint: Set release callback in the struct device_type instead of in ↵Lan Tianyu1-5/+5
the device itself directly For following the way the rest of the usb core does, this patch is to change the place of setting release callback. Signed-off-by: Lan Tianyu <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2011-08-23USB: use usb_endpoint_maxp() instead of le16_to_cpu()Kuninori Morimoto1-1/+1
Now ${LINUX}/drivers/usb/* can use usb_endpoint_maxp(desc) to get maximum packet size instead of le16_to_cpu(desc->wMaxPacketSize). This patch fix it up Cc: Armin Fuerst <[email protected]> Cc: Pavel Machek <[email protected]> Cc: Johannes Erdfelt <[email protected]> Cc: Vojtech Pavlik <[email protected]> Cc: Oliver Neukum <[email protected]> Cc: David Kubicek <[email protected]> Cc: Johan Hovold <[email protected]> Cc: Brad Hards <[email protected]> Acked-by: Felipe Balbi <[email protected]> Cc: Sebastian Andrzej Siewior <[email protected]> Cc: Thomas Dahlmann <[email protected]> Cc: David Brownell <[email protected]> Cc: David Lopo <[email protected]> Cc: Alan Stern <[email protected]> Cc: Michal Nazarewicz <[email protected]> Cc: Xie Xiaobo <[email protected]> Cc: Li Yang <[email protected]> Cc: Jiang Bo <[email protected]> Cc: Yuan-hsin Chen <[email protected]> Cc: Darius Augulis <[email protected]> Cc: Xiaochen Shen <[email protected]> Cc: Yoshihiro Shimoda <[email protected]> Cc: OKI SEMICONDUCTOR, <[email protected]> Cc: Robert Jarzmik <[email protected]> Cc: Ben Dooks <[email protected]> Cc: Thomas Abraham <[email protected]> Cc: Herbert Pötzl <[email protected]> Cc: Arnaud Patard <[email protected]> Cc: Roman Weissgaerber <[email protected]> Acked-by: Sarah Sharp <[email protected]> Cc: Tony Olech <[email protected]> Cc: Florian Floe Echtler <[email protected]> Cc: Christian Lucht <[email protected]> Cc: Juergen Stuber <[email protected]> Cc: Georges Toth <[email protected]> Cc: Bill Ryder <[email protected]> Cc: Kuba Ober <[email protected]> Cc: Inaky Perez-Gonzalez <[email protected]> Signed-off-by: Kuninori Morimoto <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2011-01-22usb: set ep_dev async suspend should be later than device_initializePeter Chen1-1/+1
The dev->power.async_suspend can only be set at the condition of dev->power.status is DPM_ON. The dev->power.status will be initialized as DPM_ON at device_initialize. Signed-off-by: Peter Chen <[email protected]> Acked-by: Alan Stern <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-10-22usb: core: endpoint: Fix error pathRahul Ruikar1-1/+1
In function usb_create_ep_devs() call put_device() when device_register() fails. Signed-off-by: Rahul Ruikar <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-08-10USB: core endpoint: Fix Coding Styles[email protected]1-2/+7
Fixed coding styles in the core usb endpoint. Signed-off-by: Carlos Sánchez Acosta <[email protected]> Signed-off-by: Alejandro Sánchez Acosta <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-03-30include cleanup: Update gfp.h and slab.h includes to prepare for breaking ↵Tejun Heo1-0/+1
implicit slab.h inclusion from percpu.h percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_*.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). * x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: Tejun Heo <[email protected]> Guess-its-ok-by: Christoph Lameter <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Lee Schermerhorn <[email protected]>
2010-02-26PM: Allow USB devices to suspend/resume asynchronouslyRafael J. Wysocki1-0/+1
Set power.async_suspend for USB devices, endpoints and interfaces, allowing them to be suspended and resumed asynchronously during system sleep transitions. The power.async_suspend flag is also set for devices that don't have suspend or resume callbacks, because otherwise they would make the main suspend/resume thread wait for their "asynchronous" children (during suspend) or parents (during resume), effectively negating the possible gains from executing these devices' suspend and resume callbacks asynchronously. Signed-off-by: Rafael J. Wysocki <[email protected]>
2009-09-15driver model: constify attribute groupsDavid Brownell1-1/+1
Let attribute group vectors be declared "const". We'd like to let most attribute metadata live in read-only sections... this is a start. Signed-off-by: David Brownell <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2009-06-15usb: convert endpoint devices to bus-less childs of the usb interfaceKay Sievers1-152/+8
The endpoint devices look like simple attribute groups now, and no longer like devices with a specific subsystem. They will also no longer emit uevents. It also removes the device node requests for endpoint devices, which are not implemented for now. Signed-off-by: Kay Sievers <[email protected]> Acked-by: Alan Stern <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2009-03-24USB: drivers: use USB API functions rather than constantsJulia Lawall1-5/+4
This set of patches introduces calls to the following set of functions: usb_endpoint_dir_in(epd) usb_endpoint_dir_out(epd) usb_endpoint_is_bulk_in(epd) usb_endpoint_is_bulk_out(epd) usb_endpoint_is_int_in(epd) usb_endpoint_is_int_out(epd) usb_endpoint_num(epd) usb_endpoint_type(epd) usb_endpoint_xfer_bulk(epd) usb_endpoint_xfer_control(epd) usb_endpoint_xfer_int(epd) usb_endpoint_xfer_isoc(epd) In some cases, introducing one of these functions is not possible, and it just replaces an explicit integer value by one of the following constants: USB_ENDPOINT_XFER_BULK USB_ENDPOINT_XFER_CONTROL USB_ENDPOINT_XFER_INT USB_ENDPOINT_XFER_ISOC An extract of the semantic patch that makes these changes is as follows: (http://www.emn.fr/x-info/coccinelle/) // <smpl> @r1@ struct usb_endpoint_descriptor *epd; @@ - ((epd->bmAttributes & \(USB_ENDPOINT_XFERTYPE_MASK\|3\)) == - \(USB_ENDPOINT_XFER_CONTROL\|0\)) + usb_endpoint_xfer_control(epd) @r5@ struct usb_endpoint_descriptor *epd; @@ - ((epd->bEndpointAddress & \(USB_ENDPOINT_DIR_MASK\|0x80\)) == - \(USB_DIR_IN\|0x80\)) + usb_endpoint_dir_in(epd) @inc@ @@ #include <linux/usb.h> @depends on !inc && (r1||r5)@ @@ + #include <linux/usb.h> #include <linux/usb/...> // </smpl> Signed-off-by: Julia Lawall <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2009-01-07USB: utilize the bus notifiersAlan Stern1-2/+2
This patch (as1185) makes usbcore take advantage of the bus notifications sent out by the driver core. Now we can create all our device and interface attribute files before the device or interface uevent is broadcast. A side effect is that we no longer create the endpoint "pseudo" devices at the same time as a device or interface is registered -- it seems like a bad idea to try registering an endpoint before the registration of its parent is complete. So the routines for creating and removing endpoint devices have been split out and renamed, and they are called explicitly when needed. A new bitflag is used for keeping track of whether or not the interface's endpoint devices have been created, since (just as with the interface attributes) they vary with the altsetting and hence can be changed at random times. Signed-off-by: Alan Stern <[email protected]> Cc: Kay Sievers <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2008-10-17USB: remove err() macro from usb core codeGreg Kroah-Hartman1-1/+2
USB should not be having it's own printk macros, so remove err() and use the system-wide standard of dev_err() wherever possible. In the few places that will not work out, use a basic printk(). Signed-off-by: Greg Kroah-Hartman <[email protected]>
2008-07-21USB: usb dev_set_name() instead of dev->bus_idKay Sievers1-1/+1
The bus_id field is going away, use the dev_set_name() function to set it properly. Signed-off-by: Kay Sievers <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2008-07-21USB: usb dev_name() instead of dev->bus_idKay Sievers1-1/+1
The bus_id field is going away, use the dev_name() function instead. Signed-off-by: Kay Sievers <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2008-05-14USB: create attributes before sending ueventAlan Stern1-6/+5
This patch (as1087d) fixes a long-standing problem in usbcore: Device, interface, and endpoint attributes aren't added until _after_ the creation uevent has already been broadcast. Unfortunately there are a few attributes which cannot be created that early. The "descriptors" attribute is binary and so must be created separately. The power-management attributes can't be created until the dev/power/ group exists. And the interface string can vary from one altsetting to another, so it has to be created dynamically. Signed-off-by: Alan Stern <[email protected]> Cc: Kay Sievers <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2007-10-18Add missing newlines to some uses of dev_<level> messagesJoe Perches1-1/+1
Found these while looking at printk uses. Add missing newlines to dev_<level> uses Add missing KERN_<level> prefixes to multiline dev_<level>s Fixed a wierd->weird spelling typo Added a newline to a printk Signed-off-by: Joe Perches <[email protected]> Cc: "Luck, Tony" <[email protected]> Cc: Jens Axboe <[email protected]> Cc: Mark M. Hoffman <[email protected]> Cc: Roland Dreier <[email protected]> Cc: Tilman Schmidt <[email protected]> Cc: David Woodhouse <[email protected]> Cc: Jeff Garzik <[email protected]> Cc: Stephen Hemminger <[email protected]> Cc: Greg KH <[email protected]> Cc: Jeremy Fitzhardinge <[email protected]> Cc: Geert Uytterhoeven <[email protected]> Cc: Alessandro Zummo <[email protected]> Cc: David Brownell <[email protected]> Cc: James Smart <[email protected]> Cc: Andrew Vasquez <[email protected]> Cc: "Antonino A. Daplas" <[email protected]> Cc: Evgeniy Polyakov <[email protected]> Cc: Russell King <[email protected]> Cc: Jaroslav Kysela <[email protected]> Cc: Takashi Iwai <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2007-10-12USB: Get rid of annoying endpoint-release messageAlan Stern1-1/+0
This patch (as990) removes an annoying debugging message. Nobody really cares when endpoint pseudo-devices are released. Signed-off-by: Alan Stern <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2007-02-16USB: In init_endpoint_class, use PTR_ERR to obtain an errno value, not IS_ERRJosh Triplett1-1/+1
init_endpoint_class calls class_create, and checks the result for an error with IS_ERR; however, if true, it then returns the result of IS_ERR (a boolean) rather than PTR_ERR (the actual errno). Signed-off-by: Josh Triplett <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2007-01-05USB: Fixed bug in endpoint release function.Sarah Bailey1-1/+1
Error handling in usb_create_ep_files() is not correct unless the minor number is freed in ep_device_release(). Signed-off-by: Sarah Bailey <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2006-12-01USB: added dynamic major number for USB endpointsSarah Bailey1-13/+85
This patch is an update for Greg K-H's proposed usbfs2: http://sourceforge.net/mailarchive/message.php?msg_id=19295229 It creates a dynamic major for USB endpoints and fixes the endpoint minor calculation. Signed-off-by: Sarah Bailey <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2006-10-17usbcore: fix endpoint device creationAlan Stern1-10/+8
This patch (as800) straightens out the USB endpoint class device creation routine, fixing a refcount bug in the process. Signed-off-by: Alan Stern <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2006-10-17usbcore: fix refcount bug in endpoint removalAlan Stern1-3/+1
This patch (as799) fixes a nasty refcount error in the USB endpoint class. Signed-off-by: Alan Stern <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2006-09-27USB: fix __must_check warnings in drivers/usb/core/Greg Kroah-Hartman1-8/+22
Signed-off-by: Greg Kroah-Hartman <[email protected]>
2006-06-21[PATCH] USB: make endpoints real struct devicesGreg Kroah-Hartman1-88/+150
This will allow for us to give endpoints a major/minor to create a "usbfs2-like" way to access endpoints directly from userspace in an easier manner than the current usbfs provides us. Signed-off-by: Greg Kroah-Hartman <[email protected]>
2006-06-21[PATCH] USB: make usb_create_ep_files take a struct deviceGreg Kroah-Hartman1-2/+2
Instead of a kobject, will make things easier in the future (don't know what I was thinking when I did this originally...) Signed-off-by: Greg Kroah-Hartman <[email protected]>
2006-06-21[PATCH] USB: move the endpoint specific sysfs code to it's own fileGreg Kroah-Hartman1-0/+213
This makes it easier to modify in the future without touching anything else. Signed-off-by: Greg Kroah-Hartman <[email protected]>
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