| Message ID | 20210310225329.2393372-1-luzmaximilian@gmail.com (mailing list archive) |
|---|---|
| Headers | show |
| Series | HID: Add support for Surface Aggregator Module HID transport | expand |
Hi, On 3/10/21 11:53 PM, Maximilian Luz wrote: > This series adds support for the Surface System Aggregator Module (SSAM) > HID transport subsystem. > > The SSAM is an embedded controller, found on 5th- and later generation > Microsoft Surface devices. On some of these devices (specifically > Surface Laptops 1, 2, and 3, as well as Surface Book 3), built-in input > devices are connected via the SSAM. These devices communicate (mostly) > via normal HID reports, so adding support for them is (mostly) just a > matter of implementing an HID transport driver. > > SSAM actually has two different HID interfaces: One (legacy) interface > used on Surface Laptops 1 and 2, and a newer interface for the rest. The > newer interface allows for multiple HID devices to be addressed and is > implemented in the first patch. The older interface only allows a single > HID device to be connected and, furthermore, only allows a single output > report, specifically one for the caps lock LED. This is implemented in > the second patch. > > See the commit messages of the respective patches for more details. > > Regards, > Max > > Note: This patch depends on the > > platform/surface: Add Surface Aggregator device registry > > series. More specifically patch > > platform/surface: Set up Surface Aggregator device registry > > The full series has been merged into the for-next branch of the > platform-drivers-x86 tree [1]. The commit in question can be found at > [2]. > > [1]: https://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86.git/log/?h=for-next > [2]: https://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86.git/commit/?h=for-next&id=fc622b3d36e6d91330fb21506b9ad1e3206a4dde Jiri, I'll prepare an immutable branch with the necessary pdx86 pre-reqs for this and I'll send you a pull-req for that IM branch, then you can merge these through the HID tree after merging that pull-req. Regards, Hans > > Maximilian Luz (2): > HID: Add support for Surface Aggregator Module HID transport > HID: surface-hid: Add support for legacy keyboard interface > > MAINTAINERS | 7 + > drivers/hid/Kconfig | 2 + > drivers/hid/Makefile | 2 + > drivers/hid/surface-hid/Kconfig | 42 +++ > drivers/hid/surface-hid/Makefile | 7 + > drivers/hid/surface-hid/surface_hid.c | 253 +++++++++++++++++ > drivers/hid/surface-hid/surface_hid_core.c | 272 +++++++++++++++++++ > drivers/hid/surface-hid/surface_hid_core.h | 77 ++++++ > drivers/hid/surface-hid/surface_kbd.c | 300 +++++++++++++++++++++ > 9 files changed, 962 insertions(+) > create mode 100644 drivers/hid/surface-hid/Kconfig > create mode 100644 drivers/hid/surface-hid/Makefile > create mode 100644 drivers/hid/surface-hid/surface_hid.c > create mode 100644 drivers/hid/surface-hid/surface_hid_core.c > create mode 100644 drivers/hid/surface-hid/surface_hid_core.h > create mode 100644 drivers/hid/surface-hid/surface_kbd.c >
On 3/10/21 11:53 PM, Maximilian Luz wrote: > This series adds support for the Surface System Aggregator Module (SSAM) > HID transport subsystem. > > The SSAM is an embedded controller, found on 5th- and later generation > Microsoft Surface devices. On some of these devices (specifically > Surface Laptops 1, 2, and 3, as well as Surface Book 3), built-in input > devices are connected via the SSAM. These devices communicate (mostly) > via normal HID reports, so adding support for them is (mostly) just a > matter of implementing an HID transport driver. > > SSAM actually has two different HID interfaces: One (legacy) interface > used on Surface Laptops 1 and 2, and a newer interface for the rest. The > newer interface allows for multiple HID devices to be addressed and is > implemented in the first patch. The older interface only allows a single > HID device to be connected and, furthermore, only allows a single output > report, specifically one for the caps lock LED. This is implemented in > the second patch. > > See the commit messages of the respective patches for more details. > > Regards, > Max > > Note: This patch depends on the > > platform/surface: Add Surface Aggregator device registry > > series. More specifically patch > > platform/surface: Set up Surface Aggregator device registry > > The full series has been merged into the for-next branch of the > platform-drivers-x86 tree [1]. The commit in question can be found at > [2]. > > [1]: https://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86.git/log/?h=for-next > [2]: https://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86.git/commit/?h=for-next&id=fc622b3d36e6d91330fb21506b9ad1e3206a4dde > > Maximilian Luz (2): > HID: Add support for Surface Aggregator Module HID transport > HID: surface-hid: Add support for legacy keyboard interface > > MAINTAINERS | 7 + > drivers/hid/Kconfig | 2 + > drivers/hid/Makefile | 2 + > drivers/hid/surface-hid/Kconfig | 42 +++ > drivers/hid/surface-hid/Makefile | 7 + > drivers/hid/surface-hid/surface_hid.c | 253 +++++++++++++++++ > drivers/hid/surface-hid/surface_hid_core.c | 272 +++++++++++++++++++ > drivers/hid/surface-hid/surface_hid_core.h | 77 ++++++ > drivers/hid/surface-hid/surface_kbd.c | 300 +++++++++++++++++++++ > 9 files changed, 962 insertions(+) > create mode 100644 drivers/hid/surface-hid/Kconfig > create mode 100644 drivers/hid/surface-hid/Makefile > create mode 100644 drivers/hid/surface-hid/surface_hid.c > create mode 100644 drivers/hid/surface-hid/surface_hid_core.c > create mode 100644 drivers/hid/surface-hid/surface_hid_core.h > create mode 100644 drivers/hid/surface-hid/surface_kbd.c > Hi, is there any status update on this? Regards, Max
On Wed, 10 Mar 2021, Maximilian Luz wrote: > This series adds support for the Surface System Aggregator Module (SSAM) > HID transport subsystem. > > The SSAM is an embedded controller, found on 5th- and later generation > Microsoft Surface devices. On some of these devices (specifically > Surface Laptops 1, 2, and 3, as well as Surface Book 3), built-in input > devices are connected via the SSAM. These devices communicate (mostly) > via normal HID reports, so adding support for them is (mostly) just a > matter of implementing an HID transport driver. > > SSAM actually has two different HID interfaces: One (legacy) interface > used on Surface Laptops 1 and 2, and a newer interface for the rest. The > newer interface allows for multiple HID devices to be addressed and is > implemented in the first patch. The older interface only allows a single > HID device to be connected and, furthermore, only allows a single output > report, specifically one for the caps lock LED. This is implemented in > the second patch. > > See the commit messages of the respective patches for more details. Now queued in hid.git#for-5.13/surface-system-aggregator-intergration Thanks,
This series adds support for the Surface System Aggregator Module (SSAM) HID transport subsystem. The SSAM is an embedded controller, found on 5th- and later generation Microsoft Surface devices. On some of these devices (specifically Surface Laptops 1, 2, and 3, as well as Surface Book 3), built-in input devices are connected via the SSAM. These devices communicate (mostly) via normal HID reports, so adding support for them is (mostly) just a matter of implementing an HID transport driver. SSAM actually has two different HID interfaces: One (legacy) interface used on Surface Laptops 1 and 2, and a newer interface for the rest. The newer interface allows for multiple HID devices to be addressed and is implemented in the first patch. The older interface only allows a single HID device to be connected and, furthermore, only allows a single output report, specifically one for the caps lock LED. This is implemented in the second patch. See the commit messages of the respective patches for more details. Regards, Max Note: This patch depends on the platform/surface: Add Surface Aggregator device registry series. More specifically patch platform/surface: Set up Surface Aggregator device registry The full series has been merged into the for-next branch of the platform-drivers-x86 tree [1]. The commit in question can be found at [2]. [1]: https://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86.git/log/?h=for-next [2]: https://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86.git/commit/?h=for-next&id=fc622b3d36e6d91330fb21506b9ad1e3206a4dde Maximilian Luz (2): HID: Add support for Surface Aggregator Module HID transport HID: surface-hid: Add support for legacy keyboard interface MAINTAINERS | 7 + drivers/hid/Kconfig | 2 + drivers/hid/Makefile | 2 + drivers/hid/surface-hid/Kconfig | 42 +++ drivers/hid/surface-hid/Makefile | 7 + drivers/hid/surface-hid/surface_hid.c | 253 +++++++++++++++++ drivers/hid/surface-hid/surface_hid_core.c | 272 +++++++++++++++++++ drivers/hid/surface-hid/surface_hid_core.h | 77 ++++++ drivers/hid/surface-hid/surface_kbd.c | 300 +++++++++++++++++++++ 9 files changed, 962 insertions(+) create mode 100644 drivers/hid/surface-hid/Kconfig create mode 100644 drivers/hid/surface-hid/Makefile create mode 100644 drivers/hid/surface-hid/surface_hid.c create mode 100644 drivers/hid/surface-hid/surface_hid_core.c create mode 100644 drivers/hid/surface-hid/surface_hid_core.h create mode 100644 drivers/hid/surface-hid/surface_kbd.c