wireguard-linux/drivers/usb/core, branch stable

usb/core/quirks: Add Huawei ME906S to wakeup quirk

2025-10-22T08:00:57Z

The list of Huawei LTE modules needing the quirk fixing spurious wakeups was missing the IDs of the Huawei ME906S module, therefore suspend did not work. Cc: stable Signed-off-by: Tim Guttzeit Signed-off-by: Werner Sembach Link: https://patch.msgid.link/20251020134304.35079-1-wse@tuxedocomputers.com Signed-off-by: Greg Kroah-Hartman

Merge 6.17-rc6 into usb-next

2025-09-15T06:18:40Z

We need the USB fixes in here as well. Signed-off-by: Greg Kroah-Hartman

usb: host: enable USB offload during system sleep

2025-09-12T12:08:02Z

Sharing a USB controller with another entity via xhci-sideband driver creates power management complexities. To prevent the USB controller from being inadvertently deactivated while in use by the other entity, a usage-count based mechanism is implemented. This allows the system to manage power effectively, ensuring the controller remains available whenever needed. In order to maintain full functionality of an offloaded USB devices, several changes are made within the suspend flow of such devices: - skip usb_suspend_device() so that the port/hub are still active for USB transfers via offloaded path. - not suspending the endpoints which are used by USB interfaces marked with needs_remote_wakeup. Namely, skip usb_suspend_interface() and usb_hcd_flush_endpoint() on associated USB interfaces. This reserves a pending interrupt urb during system suspend for handling the interrupt transfer, which is necessary since remote wakeup doesn't apply in the offloaded USB devices when controller is still active. - not flushing the endpoints of actively offloaded USB devices. Given that the USB devices is used by another entity, unilaterally flush the endpoint might lead to unexpected behavior on another entity. - not suspending the xhci controller. This is done by skipping the suspend/resume callbacks in the xhci platform driver. Signed-off-by: Guan-Yu Lin Link: https://lore.kernel.org/r/20250911142051.90822-5-guanyulin@google.com Signed-off-by: Greg Kroah-Hartman Link: https://lore.kernel.org/r/20250911142051.90822-5-guanyulin@google.com

usb: offload: add apis for offload usage tracking

2025-09-12T12:08:02Z

Introduce offload_usage and corresponding apis to track offload usage on each USB device. Offload denotes that there is another co-processor accessing the USB device via the same USB host controller. To optimize power usage, it's essential to monitor whether the USB device is actively used by other co-processor. This information is vital when determining if a USB device can be safely suspended during system power state transitions. Signed-off-by: Guan-Yu Lin Link: https://lore.kernel.org/r/20250911142051.90822-3-guanyulin@google.com Signed-off-by: Greg Kroah-Hartman Link: https://lore.kernel.org/r/20250911142051.90822-3-guanyulin@google.com

USB: core: remove the move buf action

2025-09-12T11:41:55Z

The buffer size of sysfs is fixed at PAGE_SIZE, and the page offset of the buf parameter of sysfs_emit_at() must be 0, there is no need to manually manage the buf pointer offset. Fixes: 711d41ab4a0e ("usb: core: Use sysfs_emit_at() when showing dynamic IDs") Reported-by: syzbot+b6445765657b5855e869@syzkaller.appspotmail.com Closes: https://syzkaller.appspot.com/bug?extid=b6445765657b5855e869 Tested-by: syzbot+b6445765657b5855e869@syzkaller.appspotmail.com Signed-off-by: Edward Adam Davis Link: https://lore.kernel.org/r/tencent_B32D6D8C9450EBFEEE5ACC2C7B0E6C402D0A@qq.com Signed-off-by: Greg Kroah-Hartman

Merge patch series "eUSB2 Double Isochronous IN Bandwidth support"

2025-09-06T13:25:08Z

Sakari Ailus says: This series enables support for eUSB2 Double Isochronous IN Bandwidth UVC devices specified in 'USB 2.0 Double Isochronous IN Bandwidth' ECN. In short, it adds support for new integrated USB2 webcams that can send twice the data compared to conventional USB2 webcams. These devices are identified by the device descriptor bcdUSB 0x0220 value. They have an additional eUSB2 Isochronous Endpoint Companion Descriptor, and a zero max packet size in regular isoc endpoint descriptor. Support for parsing that new descriptor was added in commit c749f058b437 ("USB: core: Add eUSB2 descriptor and parsing in USB core") This series adds support to UVC, USB core, and xHCI to identify eUSB2 double isoc devices, and allow and set proper max packet, iso frame desc sizes, bytes per interval, and other values in URBs and xHCI endpoint contexts needed to support the double data rates for eUSB2 double isoc devices. since v4: https://lore.kernel.org/linux-usb/20250812132445.3185026-1-sakari.ailus@linux.intel.com - New patch: use le16_to_cpu() to access endpoint descriptor's wMaxPacketSize field, which is an __le16. This isn't a bugfix as the value was compared to 0. - New patch: add USB device speed check for eUSB2 isochronous endpoint companion parsing. The check is then removed from sites checking the existence of the companion (through companion's bDescriptorType field, which is non-zero for valid descriptors). - New patch: do not parse eUSB2 isoc double BW companion descriptor on interrupt or OUT endpoints. It is not supposed to be found there, according to the ECN. - Rename usb_endpoint_max_isoc_bpi() as usb_endpoint_max_periodic_payload() and move it right after usb_maxpacket(). - Fixed @ep reference in kernel-doc documentation for usb_endpoint_max_periodic_payload(). - In usb_endpoint_max_periodic_payload(), call struct usb_device pointer argument "udev" instead of "dev", to align with naming elsewhere. - Add support for interrupt endpoints in usb_endpoint_max_periodic_payload(); eUSB2 double isoc BW is still limited to isochronous endpoints though. - In usb_endpoint_max_periodic_payload(), remove the separate case for USB_SPEED_HIGH as the check is already done in parsing the eUSB isoc double BW companion, which is checked for. - New patch: use usb_endpoint_max_periodic_payload() in xHCI driver, replacing xhci_get_max_esit_payload(). - Check non-zero bDescriptorType field of ep->eusb2_isoc_ep_comp instead of dwBytesPerInterval value exceeding 3072, where xhci_eusb2_is_isoc_bw_double() was used. This aligns the checks of eUSB2 isochronous double bandwidth support for an endpoint. - New patch: introduce usb_endpoint_is_hs_isoc_double() to figure out whether an endpoint uses isochronous double bandwidth and use the function in the xHCI driver and the usb core. xhci_eusb2_is_isoc_bw_double() is dropped, as well as the MAX_ISOC_XFER_SIZE_HS macro. usb_endpoint_is_hs_isoc_double() also includes check for bcdUSB == 0x220, to anticipate adding support for eUSB2V2. - Merge condition for checking eUSB2 isoc double bw support for xHCI/endpoint in xhci_get_endpoint_mult(). - Improve comment regarding maximum packet size bits 12:11 in xhci_get_endpoint_max_burst(). - Aligned subject prefixes with the recent patches to the same files. since v3: https://lore.kernel.org/linux-usb/20250807055355.1257029-1-sakari.ailus@linux.intel.com/ - Use spaces in aligning macro body for HCC2_EUSB2_DIC() (1st patch). - Move usb_endpoint_max_isoc_bpi() to drivers/usb/core/usb.c (3rd patch). since v2: https://lore.kernel.org/linux-usb/20250711083413.1552423-1-sakari.ailus@linux.intel.com - Use ep->eusb2_isoc_ep_comp.bDescriptorType to determined whether the eUSB2 isochronous endpoint companion descriptor exists. - Clean up eUSB2 double isoc bw maxp calculation. - Drop le16_to_cpu(udev->descriptor.bcdUSB) == 0x220 check from xhci_eusb2_is_isoc_bw_double() -- it's redundant as ep->eusb2_isoc_ep_comp.dwBytesPerInterval will be zero otherwise. - Add kernel-doc documentation for usb_endpoint_max_isoc_bpi(). - Check the endpoint has IN direction in usb_endpoint_max_isoc_bpi() and usb_submit_urb() as a condition for eUSB2 isoc double bw. since v1: https://lore.kernel.org/linux-usb/20250616093730.2569328-2-mathias.nyman@linux.intel.com - Introduce uvc_endpoint_max_isoc_bpi() to obtain maximum bytes per interval value for an endpoint, in a new patch (3rd). This code has been slightly reworked from the instance in the UVC driver, including support for SuperSpeedPlus Isochronous Endpoint Companion. - Use usb_endpoint_max_isoc_bpi() in the UVC driver instead of open-coding eUSB2 support there, also drop now-redundant uvc_endpoint_max_bpi(). - Use u32 for maximum bpi and related information in the UVC driver -- the value could be larger than a 16-bit type can hold. - Assume max in usb_submit_urb() is a natural number as usb_endpoint_maxp() returns only natural numbers (2nd patch). Link: https://lore.kernel.org/r/20250820143824.551777-1-sakari.ailus@linux.intel.com Cc: Sakari Ailus Signed-off-by: Greg Kroah-Hartman

usb: core: support eUSB2 double bandwidth large isoc URB frames

2025-09-06T13:25:05Z

eUSB2 double isochronous in bandwidth devices support up to 6 transactions per microframe, and thus doubles the total bytes possible to receive per microframe. Support larger URB isoc frame sizes for eUSB2 double isoc in endpoints. Also usb_endpoint_maxp() returns a natural number so there's no need to assume it could be < 0. Signed-off-by: Rai, Amardeep Reviewed-by: Sakari Ailus Signed-off-by: Mathias Nyman Co-developed-by: Sakari Ailus Signed-off-by: Sakari Ailus Acked-by: Alan Stern Acked-by: Mathias Nyman Signed-off-by: Greg Kroah-Hartman Link: https://lore.kernel.org/r/20250820143824.551777-9-sakari.ailus@linux.intel.com

usb: core: Introduce usb_endpoint_is_hs_isoc_double()

2025-09-06T13:25:05Z

Introduce usb_endpoint_is_hs_isoc_double() tell whether an endpoint conforms to USB 2.0 Isochronous Double IN Bandwidth ECN. Signed-off-by: Sakari Ailus Acked-by: Mathias Nyman Signed-off-by: Greg Kroah-Hartman Link: https://lore.kernel.org/r/20250820143824.551777-7-sakari.ailus@linux.intel.com

usb: core: Add a function to get USB version independent periodic payload

2025-09-06T13:25:05Z

Add usb_endpoint_max_periodic_payload() to obtain maximum payload bytes in a service interval for isochronous and interrupt endpoints in a USB version independent way. Signed-off-by: Rai, Amardeep Signed-off-by: Mathias Nyman Co-developed-by: Sakari Ailus Signed-off-by: Sakari Ailus Reviewed-by: Hans de Goede Acked-by: Mathias Nyman Signed-off-by: Greg Kroah-Hartman Link: https://lore.kernel.org/r/20250820143824.551777-5-sakari.ailus@linux.intel.com

usb: core: eUSB2 companion descriptor is for isoc IN endpoints only

2025-09-06T13:25:05Z

The eUSB2 isochronous double bandwidth endpoint descriptor is allowed for the isochronous IN endpoints, according to the ECN. Do not parse these descriptors if they are found in interrupt or OUT endpoints. Signed-off-by: Sakari Ailus Acked-by: Mathias Nyman Signed-off-by: Greg Kroah-Hartman Link: https://lore.kernel.org/r/20250820143824.551777-4-sakari.ailus@linux.intel.com