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path: root/drivers/usb
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2020-02-25USB: serial: f81232: use devm_kzalloc for port dataJi-Ze Hong (Peter Hong)
Use devm_kzalloc() to replace kzalloc() in port_probe(). Signed-off-by: Ji-Ze Hong (Peter Hong) <hpeter+linux_kernel@gmail.com> Signed-off-by: Johan Hovold <johan@kernel.org>
2020-02-25USB: serial: f81232: add tx_empty functionJi-Ze Hong (Peter Hong)
Add tx_empty() function for F81232. Without this, console redirection will get garbage data. Signed-off-by: Ji-Ze Hong (Peter Hong) <hpeter+linux_kernel@gmail.com> Signed-off-by: Johan Hovold <johan@kernel.org>
2020-02-25USB: serial: f81232: extract LSR handlerJi-Ze Hong (Peter Hong)
Extract LSR handler to function that can be re-used by F81532A/534A/535/536. Signed-off-by: Ji-Ze Hong (Peter Hong) <hpeter+linux_kernel@gmail.com> Signed-off-by: Johan Hovold <johan@kernel.org>
2020-02-24media: gadget: uvc: rename VFL_TYPE_GRABBER to _VIDEOHans Verkuil
'GRABBER' is a weird name, all other types map to the /dev device names. Rename to 'VIDEO' to be consistent with the other types. Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-02-24Merge 5.6-rc3 into usb-nextGreg Kroah-Hartman
We need the USB fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-02-23USB: Replace zero-length array with flexible-array memberGustavo A. R. Silva
The current codebase makes use of the zero-length array language extension to the C90 standard, but the preferred mechanism to declare variable-length types such as these ones is a flexible array member[1][2], introduced in C99: struct foo { int stuff; struct boo array[]; }; By making use of the mechanism above, we will get a compiler warning in case the flexible array does not occur last in the structure, which will help us prevent some kind of undefined behavior bugs from being inadvertently introduced[3] to the codebase from now on. Also, notice that, dynamic memory allocations won't be affected by this change: "Flexible array members have incomplete type, and so the sizeof operator may not be applied. As a quirk of the original implementation of zero-length arrays, sizeof evaluates to zero."[1] This issue was found with the help of Coccinelle. [1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html [2] https://github.com/KSPP/linux/issues/21 [3] commit 76497732932f ("cxgb3/l2t: Fix undefined behaviour") Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Link: https://lore.kernel.org/r/20200220132017.GA29262@embeddedor Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-02-19usb: musb: core: remove useless cast for driver.nameCorentin Labbe
device_driver name is const char pointer, so it not useful to cast xx_driver_name (which is already const char). Signed-off-by: Corentin Labbe <clabbe@baylibre.com> Link: https://lore.kernel.org/r/1582054383-35760-21-git-send-email-clabbe@baylibre.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-02-19usb: host: xhci-pci: remove useless cast for driver.nameCorentin Labbe
pci_driver name is const char pointer, so it not useful to cast hcd_name (which is already const char). Signed-off-by: Corentin Labbe <clabbe@baylibre.com> Link: https://lore.kernel.org/r/1582054383-35760-20-git-send-email-clabbe@baylibre.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-02-19usb: host: uhci-pci: remove useless cast for driver.nameCorentin Labbe
pci_driver name is const char pointer, so it not useful to cast hcd_name (which is already const char). Signed-off-by: Corentin Labbe <clabbe@baylibre.com> Link: https://lore.kernel.org/r/1582054383-35760-19-git-send-email-clabbe@baylibre.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-02-19usb: host: sl811-hcd: remove useless cast for driver.nameCorentin Labbe
device_driver name is const char pointer, so it not useful to cast hcd_name (which is already const char). Signed-off-by: Corentin Labbe <clabbe@baylibre.com> Link: https://lore.kernel.org/r/1582054383-35760-18-git-send-email-clabbe@baylibre.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-02-19usb: host: ohci-pci: remove useless cast for driver.nameCorentin Labbe
pci_driver name is const char pointer, so it not useful to cast hcd_name (which is already const char). Signed-off-by: Corentin Labbe <clabbe@baylibre.com> Link: https://lore.kernel.org/r/1582054383-35760-17-git-send-email-clabbe@baylibre.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-02-19usb: host: ehci-pci: remove useless cast for driver.nameCorentin Labbe
pci_driver name is const char pointer, so it not useful to cast hcd_name (which is already const char). Signed-off-by: Corentin Labbe <clabbe@baylibre.com> Link: https://lore.kernel.org/r/1582054383-35760-16-git-send-email-clabbe@baylibre.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-02-19usb: gadget: renesas_usb3: remove useless cast for driver.nameCorentin Labbe
device_driver name is const char pointer, so it not useful to cast udc_name (which is already const char). Reviewed-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Corentin Labbe <clabbe@baylibre.com> Link: https://lore.kernel.org/r/1582054383-35760-15-git-send-email-clabbe@baylibre.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-02-19usb: gadget: r8a66597-udc: remove useless cast for driver.nameCorentin Labbe
device_driver name is const char pointer, so it not useful to cast udc_name (which is already const char). Reviewed-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Corentin Labbe <clabbe@baylibre.com> Link: https://lore.kernel.org/r/1582054383-35760-14-git-send-email-clabbe@baylibre.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-02-19usb: gadget: omap_udc: remove useless cast for driver.nameCorentin Labbe
device_driver name is const char pointer, so it not useful to cast driver_name (which is already const char). Signed-off-by: Corentin Labbe <clabbe@baylibre.com> Link: https://lore.kernel.org/r/1582054383-35760-13-git-send-email-clabbe@baylibre.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-02-19usb: gadget: net2280: remove useless cast for driver.nameCorentin Labbe
device_driver name is const char pointer, so it not useful to cast driver_name (which is already const char). Signed-off-by: Corentin Labbe <clabbe@baylibre.com> Link: https://lore.kernel.org/r/1582054383-35760-12-git-send-email-clabbe@baylibre.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-02-19usb: gadget: m66592-udc: remove useless cast for driver.nameCorentin Labbe
device_driver name is const char pointer, so it not useful to cast udc_name (which is already const char). Signed-off-by: Corentin Labbe <clabbe@baylibre.com> Link: https://lore.kernel.org/r/1582054383-35760-11-git-send-email-clabbe@baylibre.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-02-19usb: gadget: lpc32xx_udc: remove useless cast for driver.nameCorentin Labbe
device_driver name is const char pointer, so it not useful to cast driver_name (which is already const char). Reviewed-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Signed-off-by: Corentin Labbe <clabbe@baylibre.com> Link: https://lore.kernel.org/r/1582054383-35760-10-git-send-email-clabbe@baylibre.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-02-19usb: gadget: goku_udc: remove useless cast for driver.nameCorentin Labbe
pci_driver name is const char pointer, so it not useful to cast driver_name (which is already const char). Signed-off-by: Corentin Labbe <clabbe@baylibre.com> Link: https://lore.kernel.org/r/1582054383-35760-9-git-send-email-clabbe@baylibre.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-02-19usb: gadget: fusb300_udc: remove useless cast for driver.nameCorentin Labbe
device_driver name is const char pointer, so it not useful to cast udc_name (which is already const char). Signed-off-by: Corentin Labbe <clabbe@baylibre.com> Link: https://lore.kernel.org/r/1582054383-35760-8-git-send-email-clabbe@baylibre.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-02-19usb: gadget: fotg210-udc: remove useless cast for driver.nameCorentin Labbe
device_driver name is const char pointer, so it not useful to cast udc_name (which is already const char). Signed-off-by: Corentin Labbe <clabbe@baylibre.com> Link: https://lore.kernel.org/r/1582054383-35760-7-git-send-email-clabbe@baylibre.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-02-19usb: gadget: dummy_hcd: remove useless cast for driver.nameCorentin Labbe
device_driver name is const char pointer, so it not useful to cast driver_name (which is already const char). Signed-off-by: Corentin Labbe <clabbe@baylibre.com> Link: https://lore.kernel.org/r/1582054383-35760-6-git-send-email-clabbe@baylibre.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-02-19usb: gadget: at91_udc: remove useless cast for driver.nameCorentin Labbe
device_driver name is const char pointer, so it not useful to cast driver_name (which is already const char). Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Signed-off-by: Corentin Labbe <clabbe@baylibre.com> Link: https://lore.kernel.org/r/1582054383-35760-5-git-send-email-clabbe@baylibre.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-02-19usb: gadget: udc: amd5536udc_pci: remove useless cast for driver.nameCorentin Labbe
pci_driver name is const char pointer, so it not useful to cast name (which is already const char). Signed-off-by: Corentin Labbe <clabbe@baylibre.com> Link: https://lore.kernel.org/r/1582054383-35760-4-git-send-email-clabbe@baylibre.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-02-19usb: gadget: legacy: inode: remove useless cast for driver.nameCorentin Labbe
device_driver name is const char pointer, so it not useful to cast shortname (which is already const char). Signed-off-by: Corentin Labbe <clabbe@baylibre.com> Link: https://lore.kernel.org/r/1582054383-35760-3-git-send-email-clabbe@baylibre.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-02-19usb: gadget: legacy: gmidi: remove useless cast for driver.nameCorentin Labbe
usb_composite_driver name is const char pointer, so it not useful to cast longname (which is already const char). Signed-off-by: Corentin Labbe <clabbe@baylibre.com> Link: https://lore.kernel.org/r/1582054383-35760-2-git-send-email-clabbe@baylibre.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-02-19usb: core: Use ACPI_SUCCESS() at appropriate placesAndy Shevchenko
Use ACPI_SUCCESS() to replace !ACPI_FAILURE(), this avoids additional operation. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20200218191717.73512-1-andriy.shevchenko@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-02-19usb: core: Make use of acpi_evaluate_object() statusAndy Shevchenko
Compiler is not happy about dangling variable: .../core/usb-acpi.c: In function ‘usb_acpi_get_connect_type’: .../core/usb-acpi.c:90:14: warning: variable ‘status’ set but not used [-Wunused-but-set-variable] 90 | acpi_status status; | ^~~~~~ Make use of it by checking the status and bail out in case of error. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20200218185207.62527-1-andriy.shevchenko@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-02-19usb-storage: Use const to reduce object data sizeJoe Perches
Make structs const to reduce data size ~20KB. Change function arguments and prototypes as necessary to compile. $ size (x86-64 defconfig pre) text data bss dec hex filename 12281 10948 480 23709 5c9d ./drivers/usb/storage/usb.o 111 10528 8 10647 2997 ./drivers/usb/storage/usual-tables.o $ size (x86-64 defconfig post) text data bss dec hex filename 22809 420 480 23709 5c9d drivers/usb/storage/usb.o 10551 0 0 10551 2937 drivers/usb/storage/usual-tables.o Signed-off-by: Joe Perches <joe@perches.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Link: https://lore.kernel.org/r/cf13bd2d790ae3afbf5da55ea7bed12e00c5119d.camel@perches.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-02-19usb: host: fhci-hcd: annotate PIPE_CONTROL switch case with fallthroughRasmus Villemoes
After this was made buildable for something other than PPC32, kbuild starts warning drivers/usb/host/fhci-hcd.c:398:8: warning: this statement may fall through [-Wimplicit-fallthrough=] I don't know this code, but from the construction (initializing size with 0 and explicitly using "size +=" in the PIPE_BULK case) I assume that fallthrough is indeed intended. Reported-by: kbuild test robot <lkp@intel.com> Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk> Acked-by: Li Yang <leoyang.li@nxp.com> Link: https://lore.kernel.org/r/20200213085401.27862-1-linux@rasmusvillemoes.dk Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-02-17usb: ucsi: ccg: disable runtime pm during fw flashingAjay Gupta
Ucsi ppm is unregistered during fw flashing so disable runtime pm also and reenable after fw flashing is completed and ppm is re-registered. Signed-off-by: Ajay Gupta <ajayg@nvidia.com> Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Link: https://lore.kernel.org/r/20200217144913.55330-3-heikki.krogerus@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-02-17usb: typec: ucsi: register DP only for NVIDIA DP VDOAjay Gupta
NVIDIA VirtualLink (svid 0x955) has two altmode, vdo=0x1 for VirtualLink DP mode and vdo=0x3 for NVIDIA test mode. Register display altmode driver only for vdo=0x1 Signed-off-by: Ajay Gupta <ajayg@nvidia.com> Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Link: https://lore.kernel.org/r/20200217144913.55330-2-heikki.krogerus@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-02-17USB: misc: iowarrior: add support for the 100 deviceGreg Kroah-Hartman
Add a new device id for the 100 devie. It has 4 interfaces like the 28 and 28L devices but a larger endpoint so more I/O pins. Cc: Christoph Jung <jung@codemercs.com> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Link: https://lore.kernel.org/r/20200214161148.GA3963518@kroah.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-02-17xhci: Add missing annotation for xhci_enter_test_modeJules Irenge
Sparse reports a warning at xhci_enter_test_mode() warning: context imbalance in xhci_enter_test_mode - unexpected unlock The root cause is the missing annotation at xhci_enter_test_mode() Add the missing __must_hold(&xhci->lock) annotattion Signed-off-by: Jules Irenge <jbi.octave@gmail.com> Link: https://lore.kernel.org/r/20200214204741.94112-24-jbi.octave@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-02-17xhci: Add missing annotation for xhci_set_port_power()Jules Irenge
Sparse reports a warning at xhci_set_port_power() warning: context imbalance in xhci_set_port_power - unexpected unlock The root cause is the missing annotation at xhci_set_port_power() Add the missing __must_hold(&xhci->lock) annotattion Signed-off-by: Jules Irenge <jbi.octave@gmail.com> Link: https://lore.kernel.org/r/20200214204741.94112-23-jbi.octave@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-02-17xhci: Do not open code __print_symbolic() in xhci trace eventsSteven Rostedt (VMware)
libtraceevent (used by perf and trace-cmd) failed to parse the xhci_urb_dequeue trace event. This is because the user space trace event format parsing is not a full C compiler. It can handle some basic logic, but is not meant to be able to handle everything C can do. In cases where a trace event field needs to be converted from a number to a string, there's the __print_symbolic() macro that should be used: See samples/trace_events/trace-events-sample.h Some xhci trace events open coded the __print_symbolic() causing the user spaces tools to fail to parse it. This has to be replaced with __print_symbolic() instead. CC: stable@vger.kernel.org Reported-by: Tzvetomir Stoyanov <tstoyanov@vmware.com> Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=206531 Fixes: 5abdc2e6e12ff ("usb: host: xhci: add urb_enqueue/dequeue/giveback tracers") Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org> Link: https://lore.kernel.org/r/20200214115634.30e8ebf2@gandalf.local.home Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-02-17usb: gadget: amd5536udc: fix spelling mistake "reserverd" -> "reserved"Alexandre Belloni
The variable is named reserved, the comment should say so. Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20200214142446.22483-1-alexandre.belloni@bootlin.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-02-14usb: gadget: f_phonet: Replace zero-length array with flexible-array memberGustavo A. R. Silva
The current codebase makes use of the zero-length array language extension to the C90 standard, but the preferred mechanism to declare variable-length types such as these ones is a flexible array member[1][2], introduced in C99: struct foo { int stuff; struct boo array[]; }; By making use of the mechanism above, we will get a compiler warning in case the flexible array does not occur last in the structure, which will help us prevent some kind of undefined behavior bugs from being inadvertenly introduced[3] to the codebase from now on. This issue was found with the help of Coccinelle. [1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html [2] https://github.com/KSPP/linux/issues/21 [3] commit 76497732932f ("cxgb3/l2t: Fix undefined behaviour") Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Link: https://lore.kernel.org/r/20200211232303.GA21495@embeddedor Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-02-14USB: musb: Replace zero-length array with flexible-array memberGustavo A. R. Silva
The current codebase makes use of the zero-length array language extension to the C90 standard, but the preferred mechanism to declare variable-length types such as these ones is a flexible array member[1][2], introduced in C99: struct foo { int stuff; struct boo array[]; }; By making use of the mechanism above, we will get a compiler warning in case the flexible array does not occur last in the structure, which will help us prevent some kind of undefined behavior bugs from being inadvertenly introduced[3] to the codebase from now on. This issue was found with the help of Coccinelle. [1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html [2] https://github.com/KSPP/linux/issues/21 [3] commit 76497732932f ("cxgb3/l2t: Fix undefined behaviour") Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Link: https://lore.kernel.org/r/20200211232519.GA23263@embeddedor Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-02-14usb: typec: tcpm: set correct data role for non-DRDLi Jun
Since the typec port data role is separated from power role, so check the port data capability when setting data role. Signed-off-by: Li Jun <jun.li@nxp.com> Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Link: https://lore.kernel.org/r/1581666828-2063-1-git-send-email-jun.li@nxp.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-02-14usb: use kobj_to_dev() APIchenqiwu
Use kobj_to_dev() API instead of container_of(). Signed-off-by: chenqiwu <chenqiwu@xiaomi.com> Link: https://lore.kernel.org/r/1581683820-9978-1-git-send-email-qiwuchen55@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-02-14drivers: usb: Call cpu_latency_qos_*() instead of pm_qos_*()Rafael J. Wysocki
Call cpu_latency_qos_add/remove_request() instead of pm_qos_add/remove_request(), respectively, because the latter are going to be dropped. No intentional functional impact. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org> Reviewed-by: Amit Kucheria <amit.kucheria@linaro.org> Tested-by: Amit Kucheria <amit.kucheria@linaro.org>
2020-02-13Merge tag 'fixes-for-v5.6-rc1' of ↵Greg Kroah-Hartman
git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-linus Felipe writes: USB: fixes for v5.6-rc1 DWC3 learned that we can't always depend on Event Status bits. A problem was solved which would only surface with scatter list on IN endpoints. DWC2 got a fix for feature requests (both set and clear) and GetStatus request. The serial gadget got a fix for a TX stall bug. Composite framework now works better for SSP devices. * tag 'fixes-for-v5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb: usb: dwc3: debug: fix string position formatting mixup with ret and len usb: gadget: serial: fix Tx stall after buffer overflow usb: gadget: ffs: ffs_aio_cancel(): Save/restore IRQ flags usb: dwc2: Fix SET/CLEAR_FEATURE and GET_STATUS flows usb: dwc2: Fix in ISOC request length checking usb: gadget: composite: Support more than 500mA MaxPower usb: gadget: composite: Fix bMaxPower for SuperSpeedPlus usb: gadget: u_audio: Fix high-speed max packet size usb: dwc3: gadget: Check for IOC/LST bit in TRB->ctrl fields
2020-02-13USB: apple-mfi-fastcharge: fix endianess issue in probeOliver Neukum
The product ID is little endian and needs to be converted. Reported-by: kbuild test robot <lkp@intel.com> Signed-off-by: Oliver Neukum <oneukum@suse.com> Reviewed-by: Bastien Nocera <hadess@hadess.net> Link: https://lore.kernel.org/r/20200213111336.32392-1-oneukum@suse.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-02-13Merge tag 'usb-serial-5.6-rc2' of ↵Greg Kroah-Hartman
https://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial into usb-linus Johan writes: USB-serial fixes for 5.6-rc2 Here's a fix for a ch341 regression in 5.5 which people have started to hit, and a fix for a logic error in an ir-usb error path. Both have been in linux-next with no reported issues. Signed-off-by: Johan Hovold <johan@kernel.org> * tag 'usb-serial-5.6-rc2' of https://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial: USB: serial: ch341: fix receiver regression USB: serial: ir-usb: Silence harmless uninitialized variable warning
2020-02-12USB: Add driver to control USB fast charge for iOS devicesBastien Nocera
iOS devices will not draw more than 500mA unless instructed to do so. Setting the charge type power supply property to "fast" tells the device to start drawing more power, using the same procedure that official "MFi" chargers would. Signed-off-by: Bastien Nocera <hadess@hadess.net> Acked-by: Alan Stern <stern@rowland.harvard.edu> Link: https://lore.kernel.org/r/20191016093933.693-7-hadess@hadess.net Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-02-12USB: Fallback to generic driver when specific driver failsBastien Nocera
If ->probe fails for a device specific driver, ask the driver core to reprobe us, after having flagged the device for the generic driver to be forced. Signed-off-by: Bastien Nocera <hadess@hadess.net> Acked-by: Alan Stern <stern@rowland.harvard.edu> Link: https://lore.kernel.org/r/20191016093933.693-6-hadess@hadess.net Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-02-12USB: Select better matching USB drivers when availableBastien Nocera
Now that USB device drivers can reuse code from the generic USB device driver, we need to make sure that they get selected rather than the generic driver. Add an id_table and match vfunc to the usb_device_driver struct, which will get used to select a better matching driver at ->probe time. This is a similar mechanism to that used in the HID drivers, with the generic driver being selected unless there's a better matching one found in the registered drivers (see hid_generic_match() in drivers/hid/hid-generic.c). Signed-off-by: Bastien Nocera <hadess@hadess.net> Acked-by: Alan Stern <stern@rowland.harvard.edu> Link: https://lore.kernel.org/r/20191016093933.693-5-hadess@hadess.net Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-02-12USB: Implement usb_device_match_id()Bastien Nocera
Match a usb_device with a table of IDs. Signed-off-by: Bastien Nocera <hadess@hadess.net> Acked-by: Alan Stern <stern@rowland.harvard.edu> Link: https://lore.kernel.org/r/20191016093933.693-4-hadess@hadess.net Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-02-12USB: Make it possible to "subclass" usb_device_driverBastien Nocera
The kernel currenly has only 2 usb_device_drivers, one generic one, one that completely replaces the generic one to make USB devices usable over a network. Use the newly exported generic driver functions when a driver declares to want them run, in addition to its own code. This makes it possible to write drivers that extend the generic USB driver. Note that this patch is not enough for another driver to automatically get selected. Signed-off-by: Bastien Nocera <hadess@hadess.net> Acked-by: Alan Stern <stern@rowland.harvard.edu> Link: https://lore.kernel.org/r/20191016093933.693-3-hadess@hadess.net Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
generated by cgit (git 2.34.1) at 2025-09-13 04:23:13 +0000