kernel/Documentation/usb/gadget-testing.rst, branch 0x221E-v0.0.1-v6.19

Documentation: treewide: Replace remaining spinics links with lore

2025-06-21T20:20:51Z

Long before introduction of lore.kernel.org, people would link to LKML threads on third-party archives (here spinics.net), which in some cases can be unreliable (as these were outside of kernel.org control). Replace links to them with lore counterparts (if any). Signed-off-by: Bagas Sanjaya Reviewed-by: Simon Horman Signed-off-by: Jonathan Corbet Link: https://lore.kernel.org/r/20250611065254.36608-2-bagasdotme@gmail.com

Documentation: typo fixes

2025-02-18T21:01:22Z

Fixed some spelling issues in documentations. Signed-off-by: Armin Mahdilou Acked-by: Randy Dunlap Signed-off-by: Jonathan Corbet Link: https://lore.kernel.org/r/20250210192754.30283-1-Armin.Mahdilou@gmail.com

usb: gadget: f_uac1: Change volume name and remove alt names

2024-08-13T16:11:35Z

This changes the UAPI to align with disussion of alt settings work. fu_name is renamed to fu_vol_name, and alt settings mode names are removed for now in favor of future work where they will be settable in subdirectories for each alt mode. discussion thread for api changes for alt mode settings: https://lore.kernel.org/linux-usb/35be4668-58d3-894a-72cf-de1afaacae45@ivitera.com/T/ Signed-off-by: Chris Wulff Link: https://lore.kernel.org/r/20240804002912.3293177-2-crwulff@gmail.com Signed-off-by: Greg Kroah-Hartman

usb: gadget: f_uac2: Expose all string descriptors through configfs.

2024-08-13T08:37:05Z

This makes all string descriptors configurable for the UAC2 gadget so the user can configure names of terminals and controls. Alt mode names are not included for now and will be in future work related to adding alternate settings. discussion thread for api changes for alt mode settings: https://lore.kernel.org/linux-usb/35be4668-58d3-894a-72cf-de1afaacae45@ivitera.com/T/ Signed-off-by: Chris Wulff Link: https://lore.kernel.org/r/20240804001923.3279431-2-crwulff@gmail.com Signed-off-by: Greg Kroah-Hartman

usb: gadget: f_uac1: Expose all string descriptors through configfs.

2024-07-31T08:41:06Z

This makes all string descriptors configurable for the UAC1 gadget so the user can configure names of terminals/controls/alt modes. Signed-off-by: Chris Wulff Link: https://lore.kernel.org/r/CO1PR17MB541911B0C80D21E4B575E48CE1112@CO1PR17MB5419.namprd17.prod.outlook.com Signed-off-by: Greg Kroah-Hartman

Merge 6.8-rc3 into usb-next

2024-02-04T14:19:37Z

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

usb: gadget: f_fs: expose ready state in configfs

2024-01-28T01:39:21Z

When a USB gadget is configured through configfs with 1 or more f_fs functions, then the logic setting up the gadget configuration has to wait until the user space code (typically separate applications) responsible for those functions have written their descriptors before the gadget can be activated. The f_fs instance already knows if this has been done, so expose it through a "ready" attribute in configfs for easier synchronization. Signed-off-by: Peter Korsgaard Link: https://lore.kernel.org/r/20240126203208.2482573-1-peter@korsgaard.com Signed-off-by: Greg Kroah-Hartman

usb: gadget: ncm: Fix indentations in documentation of NCM section

2024-01-28T00:27:58Z

Currently, the section of NCM which describes attributes are having wrong indentation. Fix this by following the correct format recommended. Fixes: 1900daeefd3e ("usb: gadget: ncm: Add support to update wMaxSegmentSize via configfs") Reported-by: Stephen Rothwell Closes: https://lore.kernel.org/all/20240108160221.743649b5@canb.auug.org.au/ Signed-off-by: Udipto Goswami Link: https://lore.kernel.org/r/20240108132720.7786-1-quic_ugoswami@quicinc.com Signed-off-by: Greg Kroah-Hartman

usb: gadget: ncm: Add support to update wMaxSegmentSize via configfs

2024-01-04T15:01:14Z

The max segment size is currently limited to the ethernet frame length of the kernel which happens to be 1514 at this point in time. However the NCM specification limits it to 64K for sixtenn bit NTB's. For peer to peer connections, increasing the segment size gives better throughput. Add support to configure this value before configfs symlink is created. Also since the NTB Out/In buffer sizes are fixed at 16384 bytes, limit the segment size to an upper cap of 8000 to allow at least a minimum of 2 MTU sized datagrams to be aggregated. Set the default MTU size for the ncm interface during function bind before network interface is registered allowing MTU to be set in parity with wMaxSegmentSize. Update gadget documentation describing the new configfs property. Signed-off-by: Krishna Kurapati Link: https://lore.kernel.org/r/20231221153216.18657-1-quic_kriskura@quicinc.com Signed-off-by: Greg Kroah-Hartman

usb: gadget: f_uac2: allow changing terminal types through configfs

2023-10-05T07:35:43Z

Add "c_terminal_type" and "p_terminal_type" configfs entries in order to allow the user to change the capture and playback terminal type codes. These fields affect the type of audio device that Windows detects, so being able to modify this is useful when it would be advantageous for a gadget to be detected as something other than a generic speaker/microphone. The fields default to microphone for the capture type field and speaker for the playback type field as was the case before. Signed-off-by: James Gruber Link: https://lore.kernel.org/r/20230914222746.155126-1-jimmyjgruber@gmail.com Signed-off-by: Greg Kroah-Hartman