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| * | | | usb: core: lpm: fix usb3_hardware_lpm sysfs nodeLu Baolu2015-12-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 655fe4effe0f ("usbcore: add sysfs support to xHCI usb3 hardware LPM") introduced usb3_hardware_lpm sysfs node. This doesn't show the correct status of USB3 U1 and U2 LPM status. This patch fixes this by replacing usb3_hardware_lpm with two nodes, usb3_hardware_lpm_u1 (for U1) and usb3_hardware_lpm_u2 (for U2), and recording the U1/U2 LPM status in right places. This patch should be back-ported to kernels as old as 4.3, that contains Commit 655fe4effe0f ("usbcore: add sysfs support to xHCI usb3 hardware LPM"). Cc: stable@vger.kernel.org Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | | USB: constify usb_mon_operations structureJulia Lawall2015-12-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The usb_mon_operations structure is never modified, so declare it as const. Done with the help of Coccinelle. Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | | USB: add usbfs snooping for REAP and DISCARDAlan Stern2015-12-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch improves the usbfs_snoop debugging facility by adding messages for a couple of significant events which, up to now, have not been logged. The events are reaping and discarding (i.e., cancelling) an URB. The debugging messages include the userspace address of the URB being reaped or discarded. The reaping messages have to be added in four places, in order to handle blocking and non-blocking reaps in both normal and 32-bit compatibility mode. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | | USB: limit usbfs snooping of URB contentsAlan Stern2015-12-01
| | |_|/ | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The usbfs_snoop facility can be very useful for debugging problems involving usbfs. However, it always prints out the entire contents of every URB. When dealing with large quantities of data, this can be less than helpful. This patch ameliorates the situation by adding a module parameter to usbcore for controlling the maximum number of bytes to print when snooping an URB. This makes debugging much easier. For backward compatibility, the default value is set unreasonably high. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | | | Merge branch 'memdup_user_nul' into work.miscAl Viro2016-01-04
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| * | | USB: fix invalid memory access in hub_activate()Alan Stern2015-12-18
| | |/ | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 8520f38099cc ("USB: change hub initialization sleeps to delayed_work") changed the hub_activate() routine to make part of it run in a workqueue. However, the commit failed to take a reference to the usb_hub structure or to lock the hub interface while doing so. As a result, if a hub is plugged in and quickly unplugged before the work routine can run, the routine will try to access memory that has been deallocated. Or, if the hub is unplugged while the routine is running, the memory may be deallocated while it is in active use. This patch fixes the problem by taking a reference to the usb_hub at the start of hub_activate() and releasing it at the end (when the work is finished), and by locking the hub interface while the work routine is running. It also adds a check at the start of the routine to see if the hub has already been disconnected, in which nothing should be done. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Reported-by: Alexandru Cornea <alexandru.cornea@intel.com> Tested-by: Alexandru Cornea <alexandru.cornea@intel.com> Fixes: 8520f38099cc ("USB: change hub initialization sleeps to delayed_work") CC: <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | USB: add quirk for devices with broken LPMAlan Stern2015-12-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some USB device / host controller combinations seem to have problems with Link Power Management. For example, Steinar found that his xHCI controller wouldn't handle bandwidth calculations correctly for two video cards simultaneously when LPM was enabled, even though the bus had plenty of bandwidth available. This patch introduces a new quirk flag for devices that should remain disabled for LPM, and creates quirk entries for Steinar's devices. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Reported-by: Steinar H. Gunderson <sgunderson@bigfoot.com> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | usb: Quiet down false peer failure messagesDon Zickus2015-12-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | My recent Intel box is spewing these messages: xhci_hcd 0000:00:14.0: xHCI Host Controller xhci_hcd 0000:00:14.0: new USB bus registered, assigned bus number 2 usb usb2: New USB device found, idVendor=1d6b, idProduct=0003 usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1 usb usb2: Product: xHCI Host Controller usb usb2: Manufacturer: Linux 4.3.0+ xhci-hcd usb usb2: SerialNumber: 0000:00:14.0 hub 2-0:1.0: USB hub found hub 2-0:1.0: 6 ports detected usb: failed to peer usb2-port2 and usb1-port1 by location (usb2-port2:none) (usb1-port1:usb2-port1) usb usb2-port2: failed to peer to usb1-port1 (-16) usb: port power management may be unreliable usb: failed to peer usb2-port3 and usb1-port1 by location (usb2-port3:none) (usb1-port1:usb2-port1) usb usb2-port3: failed to peer to usb1-port1 (-16) usb: failed to peer usb2-port5 and usb1-port1 by location (usb2-port5:none) (usb1-port1:usb2-port1) usb usb2-port5: failed to peer to usb1-port1 (-16) usb: failed to peer usb2-port6 and usb1-port1 by location (usb2-port6:none) (usb1-port1:usb2-port1) usb usb2-port6: failed to peer to usb1-port1 (-16) Diving into the acpi tables, I noticed the EHCI hub has 12 ports while the XHCI hub has 8 ports. Most of those ports are of connect type USB_PORT_NOT_USED (including port 1 of the EHCI hub). Further the unused ports have location data initialized to 0x80000000. Now each unused port on the xhci hub walks the port list and finds a matching peer with port1 of the EHCI hub because the zero'd out group id bits falsely match. After port1 of the XHCI hub, each following matching peer will generate the above warning. These warnings seem to be harmless for this scenario as I don't think it matters that unused ports could not create a peer link. The attached patch utilizes that assumption and just turns the pr_warn into pr_debug to quiet things down. Tested on my Intel box. Signed-off-by: Don Zickus <dzickus@redhat.com> Acked-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | usb: Use the USB_SS_MULT() macro to decode burst multiplier for log messageBen Hutchings2015-12-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | usb_parse_ss_endpoint_companion() now decodes the burst multiplier correctly in order to check that it's <= 3, but still uses the wrong expression if warning that it's > 3. Fixes: ff30cbc8da42 ("usb: Use the USB_SS_MULT() macro to get the ...") Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | usb: core : hub: Fix BOS 'NULL pointer' kernel panicHans Yang2015-12-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When a USB 3.0 mass storage device is disconnected in transporting state, storage device driver may handle it as a transport error and reset the device by invoking usb_reset_and_verify_device() and following could happen: in usb_reset_and_verify_device(): udev->bos = NULL; For U1/U2 enabled devices, driver will disable LPM, and in some conditions: from usb_unlocked_disable_lpm() --> usb_disable_lpm() --> usb_enable_lpm() udev->bos->ss_cap->bU1devExitLat; And it causes 'NULL pointer' and 'kernel panic': [ 157.976257] Unable to handle kernel NULL pointer dereference at virtual address 00000010 ... [ 158.026400] PC is at usb_enable_link_state+0x34/0x2e0 [ 158.031442] LR is at usb_enable_lpm+0x98/0xac ... [ 158.137368] [<ffffffc0006a1cac>] usb_enable_link_state+0x34/0x2e0 [ 158.143451] [<ffffffc0006a1fec>] usb_enable_lpm+0x94/0xac [ 158.148840] [<ffffffc0006a20e8>] usb_disable_lpm+0xa8/0xb4 ... [ 158.214954] Kernel panic - not syncing: Fatal exception This commit moves 'udev->bos = NULL' behind usb_unlocked_disable_lpm() to prevent from NULL pointer access. Issue can be reproduced by following setup: 1) A SS pen drive behind a SS hub connected to the host. 2) Transporting data between the pen drive and the host. 3) Abruptly disconnect hub and pen drive from host. 4) With a chance it crashes. Signed-off-by: Hans Yang <hansy@nvidia.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | USB: quirks: Fix another ELAN touchscreenAdrien Vergé2015-12-01
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Like other buggy models that had their fixes [1], the touchscreen with id 04f3:21b8 from ELAN Microelectronics needs the device-qualifier quirk. Otherwise, it fails to respond, blocks the boot for a random amount of time and pollutes dmesg with: [ 2887.373196] usb 1-5: new full-speed USB device number 41 using xhci_hcd [ 2889.502000] usb 1-5: unable to read config index 0 descriptor/start: -71 [ 2889.502005] usb 1-5: can't read configurations, error -71 [ 2889.654571] usb 1-5: new full-speed USB device number 42 using xhci_hcd [ 2891.783438] usb 1-5: unable to read config index 0 descriptor/start: -71 [ 2891.783443] usb 1-5: can't read configurations, error -71 [1]: See commits c68929f, 876af5d, d749947, a32c99e and dc703ec. Tested-by: Adrien Vergé <adrienverge@gmail.com> Signed-off-by: Adrien Vergé <adrienverge@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* / new helpers: no_seek_end_llseek{,_size}()Al Viro2015-12-23
|/ | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* usb: kconfig: fix warning of select USB_OTGPeter Chen2015-11-19
| | | | | | | | | | | | | | | When choose randconfig for kernel build, it reports below warning: "warning: (USB_OTG_FSM && FSL_USB2_OTG && USB_MV_OTG) selects USB_OTG which has unmet direct dependencies (USB_SUPPORT && USB && PM)" In fact, USB_OTG is visible symbol and depends on PM, so the driver needs to depend on it to reduce dependency problem. Signed-off-by: Peter Chen <peter.chen@freescale.com> Reported-by: Arnd Bergmann <arnd@arndb.de> Cc: Felipe Balbi <balbi@ti.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* USB: core: Codestyle fix in urb.cJonas Hesselmann2015-10-25
| | | | | | | Delete braces around single statement block suggested by checkpatch.pl Signed-off-by: Jonas Hesselmann <jonas.hesselmann@hotmail.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: hcd: use USB_DT_*Sergei Shtylyov2015-10-17
| | | | | | | | Fix using the bare numbers to set the 'bDescriptorType' descriptor fields while the values are #define'd in <linux/usb/ch9.h>. Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* Merge 4.3-rc5 into usb-nextGreg Kroah-Hartman2015-10-12
|\ | | | | | | | | | | We want the USB fixes in here as well to make merges easier. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * usb: Add device quirk for Logitech PTZ camerasVincent Palatin2015-10-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add a device quirk for the Logitech PTZ Pro Camera and its sibling the ConferenceCam CC3000e Camera. This fixes the failed camera enumeration on some boot, particularly on machines with fast CPU. Tested by connecting a Logitech PTZ Pro Camera to a machine with a Haswell Core i7-4600U CPU @ 2.10GHz, and doing thousands of reboot cycles while recording the kernel logs and taking camera picture after each boot. Before the patch, more than 7% of the boots show some enumeration transfer failures and in a few of them, the kernel is giving up before actually enumerating the webcam. After the patch, the enumeration has been correct on every reboot. Signed-off-by: Vincent Palatin <vpalatin@chromium.org> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * USB: Add reset-resume quirk for two Plantronics usb headphones.Yao-Wen Mao2015-10-04
| | | | | | | | | | | | | | | | | | These two headphones need a reset-resume quirk to properly resume to original volume level. Signed-off-by: Yao-Wen Mao <yaowen@google.com> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | usb: otg: don't set a_alt_hnp_support feature for OTG 2.0 deviceLi Jun2015-10-04
| | | | | | | | | | | | | | | | | | | | | | | | Since a_alt_hnp_support is obsolete in OTG 2.0, HNP capable host should send this set feature request only if the otg device is connecting to a non-HNP port and it's compliant with OTG 1.x revision. This is done by checking its otg descriptor length, OTG 2.0 uses usb_otg20_descriptor which has different length than OTG 1.x using usb_otg_descriptor. Signed-off-by: Li Jun <jun.li@freescale.com> Acked-by: Peter Chen <peter.chen@freescale.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | usb: core: driver: Use kmalloc_arrayMuhammad Falak R Wani2015-10-04
| | | | | | | | | | | | | | | | | | Use kmalloc_array instead of kmalloc to allocate memory for an array. Also, remove the dev_warn for a memory leak, making the if check more sleek. Signed-off-by: Muhammad Falak R Wani <falakreyaz@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | usb: message: remove redundant declarationKris Borer2015-10-04
| | | | | | | | | | | | | | | | | | | | Fix the Sparse warning: message.c:1390:21: warning: symbol 'i' shadows an earlier one message.c:1294:13: originally declared here Signed-off-by: Kris Borer <kborer@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | usb: hub: remove redundant declarationsKris Borer2015-10-04
| | | | | | | | | | | | | | | | | | | | Fix two occurrences of the Sparse warning: warning: symbol XXX shadows an earlier one Signed-off-by: Kris Borer <kborer@gmail.com> Reviewed-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | usb: core: hub: Removed some warnings generated by checkpatch.plChase Metzger2015-10-04
| | | | | | | | | | | | | | | | Removed some checkpatch.pl warnings saying there was an unwanted space between function names and their arguments. Signed-off-by: Chase Metzger <chasemetzger15@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | usb: define HCD_USB31 speed option for hosts that support USB 3.1 featuresMathias Nyman2015-10-04
| | | | | | | | | | | | | | | | | | | | | | | | Hosts that support USB 3.1 Enhaned SuperSpeed can set their speed to HCD_USB31 to let usb core and host drivers know that the controller supports new USB 3.1 features. make sure usb core handle HCD_USB31 hosts correctly, for now similar to HCD_USB3. Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | usb: store the new usb 3.1 SuperSpeedPlus device capability descriptorMathias Nyman2015-10-04
| | | | | | | | | | | | | | | | | | | | If a device supports usb 3.1 SupeerSpeedPlus Gen2 speeds it povides a SuperSpeedPlus device capability descriptor as a part of its BOS descriptor. If we find one while parsing the BOS then save it togeter with the other device capabilities found in the BOS Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | Merge 4.3-rc3 into usb-nextGreg Kroah-Hartman2015-09-28
|\| | | | | | | | | | | We want the USB fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * usb: Use the USB_SS_MULT() macro to get the burst multiplier.Mathias Nyman2015-09-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Bits 1:0 of the bmAttributes are used for the burst multiplier. The rest of the bits used to be reserved (zero), but USB3.1 takes bit 7 into use. Use the existing USB_SS_MULT() macro instead to make sure the mult value and hence max packet calculations are correct for USB3.1 devices. Note that burst multiplier in bmAttributes is zero based and that the USB_SS_MULT() macro adds one. Cc: <stable@vger.kernel.org> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | usb: interface authorization: Use a flag for the default device authorizationStefan Koch2015-09-22
| | | | | | | | | | | | | | | | With this patch a flag instead of a variable is used for the default device authorization. Signed-off-by: Stefan Koch <stefan.koch10@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | usb: interface authorization: SysFS part of USB interface authorizationStefan Koch2015-09-22
| | | | | | | | | | | | | | | | | | This introduces an attribute for each interface to authorize (1) or deauthorize (0) it: /sys/bus/usb/devices/INTERFACE/authorized Signed-off-by: Stefan Koch <stefan.koch10@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | usb: interface authorization: Introduces the USB interface authorizationStefan Koch2015-09-22
| | | | | | | | | | | | | | | | | | | | | | | | | | The kernel supports the device authorization because of wireless USB. These is usable for wired USB devices, too. These new interface authorization allows to enable or disable individual interfaces instead a whole device. If a deauthorized interface will be authorized so the driver probing must be triggered manually by writing INTERFACE to /sys/bus/usb/drivers_probe Signed-off-by: Stefan Koch <stefan.koch10@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | usb: interface authorization: Control interface probing and claimingStefan Koch2015-09-22
| | | | | | | | | | | | | | | | Driver probings and interface claims get rejected if an interface is not authorized. Signed-off-by: Stefan Koch <stefan.koch10@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | usb: interface authorization: Introduces the default interface authorizationStefan Koch2015-09-22
|/ | | | | | | | | Interfaces are allowed per default. This can disabled or enabled (again) by writing 0 or 1 to /sys/bus/usb/devices/usbX/interface_authorized_default Signed-off-by: Stefan Koch <stefan.koch10@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* Revert "usb: interface authorization: Introduces the default interface ↵Greg Kroah-Hartman2015-08-18
| | | | | | | | | | authorization" This reverts commit 1d958bef45030acfc5578263e9de3bb07032b8da as the signed-off-by address is invalid. Cc: Stefan Koch <stefan.koch10@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* Revert "usb: interface authorization: Control interface probing and claiming"Greg Kroah-Hartman2015-08-18
| | | | | | | | This reverts commit de7718bd9c4d3db96991a98c2a0cb38258a04e47 as the signed-off-by address is invalid. Cc: Stefan Koch <stefan.koch10@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* Revert "usb: interface authorization: Introduces the USB interface ↵Greg Kroah-Hartman2015-08-18
| | | | | | | | | | authorization" This reverts commit ef0909c50fe63be3f9aa09bdf4db7efaa5919be9 as the signed-off-by address is invalid. Cc: Stefan Koch <stefan.koch10@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* Revert "usb: interface authorization: SysFS part of USB interface authorization"Greg Kroah-Hartman2015-08-18
| | | | | | | | This reverts commit 187b3d75bbfba45a38b5d1d3656c0f11f6f6f2d0 as the signed-off-by address is invalid. Cc: Stefan Koch <stefan.koch10@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* Revert "usb: interface authorization: Use a flag for the default device ↵Greg Kroah-Hartman2015-08-18
| | | | | | | | | | authorization" This reverts commit 3cf1fc80655d3af7083ea4b3615e5f8532543be7 as the signed-off-by address is invalid. Cc: Stefan Koch <stefan.koch10@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: core: hub: Removed some warnings generated by checkpatch.plChase Metzger2015-08-14
| | | | | | | | Removed some checkpatch.pl warnings saying there was an unwanted space between function names and their arguments. Signed-off-by: Chase Metzger <chasemetzger15@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: interface authorization: Use a flag for the default device authorizationStefan Koch2015-08-14
| | | | | | | | With this patch a flag instead of a variable is used for the default device authorization. Signed-off-by: Stefan Koch <skoch@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: interface authorization: SysFS part of USB interface authorizationStefan Koch2015-08-14
| | | | | | | | | This introduces an attribute for each interface to authorize (1) or deauthorize (0) it: /sys/bus/usb/devices/INTERFACE/authorized Signed-off-by: Stefan Koch <skoch@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: interface authorization: Introduces the USB interface authorizationStefan Koch2015-08-14
| | | | | | | | | | | | | The kernel supports the device authorization because of wireless USB. These is usable for wired USB devices, too. These new interface authorization allows to enable or disable individual interfaces instead a whole device. If a deauthorized interface will be authorized so the driver probing must be triggered manually by writing INTERFACE to /sys/bus/usb/drivers_probe Signed-off-by: Stefan Koch <skoch@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: interface authorization: Control interface probing and claimingStefan Koch2015-08-14
| | | | | | | | Driver probings and interface claims get rejected if an interface is not authorized. Signed-off-by: Stefan Koch <skoch@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: interface authorization: Introduces the default interface authorizationStefan Koch2015-08-14
| | | | | | | | | Interfaces are allowed per default. This can disabled or enabled (again) by writing 0 or 1 to /sys/bus/usb/devices/usbX/interface_authorized_default Signed-off-by: Stefan Koch <skoch@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: hub: remove assignment from if conditionKris Borer2015-08-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | Fix one occurrence of the checkpatch.pl error: ERROR: do not use assignment in if condition The semantic patch that makes this change is: // <smpl> @@ identifier i; expression E, E2, E3; statement S1, S2; binary operator b; @@ + i = E; if ( - (i = E) + i b ... && E2 && E3 ) S1 else S2 // </smpl> Signed-off-by: Kris Borer <kborer@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: endpoint: convert spaces to tabsKris Borer2015-08-14
| | | | | | | | | Fix one occurrence of the checkpatch error: ERROR: code indent should use tabs where possible Signed-off-by: Kris Borer <kborer@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: otg_whitelist: remove whitespaceKris Borer2015-08-14
| | | | | | | | | Fix one occurrence of the checkpatch error: ERROR: space prohibited before open square bracket '[' Signed-off-by: Kris Borer <kborer@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: core: hub.c: Removed some warnings generated by checkpatch.plChase Metzger2015-08-08
| | | | | | | | Removed some checkpatch.pl warnings saying there was an unwanted space between function names and their arguments. Signed-off-by: Chase Metzger <chasemetzger15@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: devio: fix spacingKris Borer2015-08-08
| | | | | | | | | | | | | Fix two occurrences of the checkpatch.pl error: ERROR: space prohibited before that ',' (ctx:WxW) Fix one occurrence of the checkpatch error: ERROR: space required before the open parenthesis '(' Signed-off-by: Kris Borer <kborer@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: devio: remove assignment from if conditionKris Borer2015-08-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix five occurrences of the checkpatch.pl error: ERROR: do not use assignment in if condition The semantic patch that makes this change is: // <smpl> @@ identifier i; expression E; statement S1, S2; @@ + i = E; if ( - (i = E) + i ) S1 else S2 @@ identifier i; expression E; statement S; constant c; binary operator b; @@ + i = E; if ( - (i = E) + i b c ) S // </smpl> Signed-off-by: Kris Borer <kborer@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* Merge 4.2-rc4 into usb-nextGreg Kroah-Hartman2015-07-27
|\ | | | | | | | | | | | | We want the USB fixes that went into that release in this branch as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
generated by cgit v1.2.2 (git 2.25.0) at 2025-04-04 06:13:58 -0400