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authorLinus Torvalds <torvalds@linux-foundation.org>2026-02-17 09:36:43 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2026-02-17 09:36:43 -0800
commit17f8d2009367c3da82882f70ccbdca9f8c7b5f20 (patch)
tree80b8dc44dc22336501072cdc3b3e49d14c3867e1 /Documentation/ABI
parent3ad7945754000d868ed86315d33085a914c422c1 (diff)
parentda87d45b195148d670ab995367d52aa9e8a9a1fa (diff)
downloadlinux-next-17f8d2009367c3da82882f70ccbdca9f8c7b5f20.tar.gz
linux-next-17f8d2009367c3da82882f70ccbdca9f8c7b5f20.zip
Merge tag 'usb-7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB / Thunderbolt updates from Greg KH: "Here is the "big" set of USB and Thunderbolt driver updates for 7.0-rc1. Overall more lines were removed than added, thanks to dropping the obsolete isp1362 USB host controller driver, always a nice change. Other than that, nothing major happening here, highlights are: - lots of dwc3 driver updates and new hardware support added - usb gadget function driver updates - usb phy driver updates - typec driver updates and additions - USB rust binding updates for syntax and formatting changes - more usb serial device ids added - other smaller USB core and driver updates and additions All of these have been in linux-next for a long time, with no reported problems" * tag 'usb-7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (77 commits) usb: typec: ucsi: Add Thunderbolt alternate mode support usb: typec: hd3ss3220: Check if regulator needs to be switched usb: phy: tegra: parametrize PORTSC1 register offset usb: phy: tegra: parametrize HSIC PTS value usb: phy: tegra: return error value from utmi_wait_register usb: phy: tegra: cosmetic fixes dt-bindings: usb: renesas,usbhs: Add RZ/G3E SoC support usb: dwc2: fix resume failure if dr_mode is host usb: cdns3: fix role switching during resume usb: dwc3: gadget: Move vbus draw to workqueue context USB: serial: option: add Telit FN920C04 RNDIS compositions usb: dwc3: Log dwc3 address in traces usb: gadget: tegra-xudc: Add handling for BLCG_COREPLL_PWRDN usb: phy: tegra: add HSIC support usb: phy: tegra: use phy type directly usb: typec: ucsi: Enforce mode selection for cros_ec_ucsi usb: typec: ucsi: Support mode selection to activate altmodes usb: typec: Introduce mode_selection bit usb: typec: Implement mode selection usb: typec: Expose alternate mode priority via sysfs ...
Diffstat (limited to 'Documentation/ABI')
-rw-r--r--Documentation/ABI/testing/configfs-usb-gadget-midi17
-rw-r--r--Documentation/ABI/testing/sysfs-bus-pci-drivers-xhci_hcd42
-rw-r--r--Documentation/ABI/testing/sysfs-class-typec11
3 files changed, 62 insertions, 8 deletions
diff --git a/Documentation/ABI/testing/configfs-usb-gadget-midi b/Documentation/ABI/testing/configfs-usb-gadget-midi
index 07389cddd51a..d6bd67bb91fc 100644
--- a/Documentation/ABI/testing/configfs-usb-gadget-midi
+++ b/Documentation/ABI/testing/configfs-usb-gadget-midi
@@ -4,11 +4,12 @@ KernelVersion: 3.19
Description:
The attributes:
- ========== ====================================
- index index value for the USB MIDI adapter
- id ID string for the USB MIDI adapter
- buflen MIDI buffer length
- qlen USB read request queue length
- in_ports number of MIDI input ports
- out_ports number of MIDI output ports
- ========== ====================================
+ ================ ====================================
+ index index value for the USB MIDI adapter
+ id ID string for the USB MIDI adapter
+ buflen MIDI buffer length
+ qlen USB read request queue length
+ in_ports number of MIDI input ports
+ out_ports number of MIDI output ports
+ interface_string USB AudioControl interface string
+ ================ ====================================
diff --git a/Documentation/ABI/testing/sysfs-bus-pci-drivers-xhci_hcd b/Documentation/ABI/testing/sysfs-bus-pci-drivers-xhci_hcd
index fc82aa4e54b0..d10e6de3adb2 100644
--- a/Documentation/ABI/testing/sysfs-bus-pci-drivers-xhci_hcd
+++ b/Documentation/ABI/testing/sysfs-bus-pci-drivers-xhci_hcd
@@ -85,3 +85,45 @@ Description:
up to 5000. The default value is 64 ms.
This polling interval is used while DbC is enabled but has no
active data transfers.
+
+What: /sys/bus/pci/drivers/xhci_hcd/.../dbc_serial
+Date: January 2026
+Contact: Łukasz Bartosik <ukaszb@chromium.org>
+Description:
+ The dbc_serial attribute allows to change the serial number
+ string descriptor presented by the debug device when a host
+ requests a string descriptor with iSerialNumber index.
+ Index is found in the iSerialNumber field in the device
+ descriptor.
+ Value can only be changed while debug capability (DbC) is in
+ disabled state to prevent USB device descriptor change while
+ connected to a USB host.
+ The default value is "0001".
+ The field length can be from 1 to 126 characters.
+
+What: /sys/bus/pci/drivers/xhci_hcd/.../dbc_product
+Date: January 2026
+Contact: Łukasz Bartosik <ukaszb@chromium.org>
+Description:
+ The dbc_product attribute allows to change the product string
+ descriptor presented by the debug device when a host requests
+ a string descriptor with iProduct index.
+ Index is found in the iProduct field in the device descriptor.
+ Value can only be changed while debug capability (DbC) is in
+ disabled state to prevent USB device descriptor change while
+ connected to a USB host.
+ The default value is "Linux USB Debug Target".
+ The field length can be from 1 to 126 characters.
+
+What: /sys/bus/pci/drivers/xhci_hcd/.../dbc_manufacturer
+Date: January 2026
+Contact: Łukasz Bartosik <ukaszb@chromium.org>
+Description:
+ The dbc_manufacturer attribute allows to change the manufacturer
+ string descriptor presented by the debug device when a host
+ requests a string descriptor with iManufacturer index.
+ Value can only be changed while debug capability (DbC) is in
+ disabled state to prevent USB device descriptor change while
+ connected to a USB host.
+ The default value is "Linux Foundation".
+ The field length can be from 1 to 126 characters.
diff --git a/Documentation/ABI/testing/sysfs-class-typec b/Documentation/ABI/testing/sysfs-class-typec
index 38e101c17a00..737b76828b50 100644
--- a/Documentation/ABI/testing/sysfs-class-typec
+++ b/Documentation/ABI/testing/sysfs-class-typec
@@ -162,6 +162,17 @@ Description: Lists the supported USB Modes. The default USB mode that is used
- usb3 (USB 3.2)
- usb4 (USB4)
+What: /sys/class/typec/<port>/<alt-mode>/priority
+Date: July 2025
+Contact: Andrei Kuchynski <akuchynski@chromium.org>
+Description:
+ Displays and allows setting the priority for a specific alternate mode.
+ The priority is an integer in the range 0-255. A lower numerical value
+ indicates a higher priority (0 is the highest).
+ If the new value is already in use by another mode, the priority of the
+ conflicting mode and any subsequent modes will be incremented until they
+ are all unique.
+
USB Type-C partner devices (eg. /sys/class/typec/port0-partner/)
What: /sys/class/typec/<port>-partner/accessory_mode