devel January 2020

devel@libdivecomputer.org

4 participants
2 discussions

Suunto D5 USB interface
by Brendan Horan 12 Jan '20

12 Jan '20

Hi all, >From my understanding the Suunto D5 is supported via bluetooth. This commit seems to support that. https://github.com/libdivecomputer/libdivecomputer/commit/0dc10062ced1be609… However I do not think the D5 is supported via USB connectivity? The only kernel messages I see are : -------------------------- hid-generic 0003:1493:0035.0012: hiddev97,hidraw4: USB HID v1.01 Device [Suunto GURU3] on usb-0000:03:00.0-2/input0 -------------------------- I don't get a /dev/tty$$$ device node either. Is this a libdivecomputer limitation or the USB interface may not be supported in the Linux kernel? I also may not have enabled kernel support for the USB device, unsure what it actually is yet. Thank you, Brendan

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Planned changes to the I/O layer
by Jef Driesen 06 Jan '20

06 Jan '20

Hi, In the next few days, I'm planning to commit some non-backwards compatible changes to the I/O layer: A new dc_iostream_ioctl function will be introduced to perform I/O specific requests. This allows to extend the I/O layer with some driver specific features, without having to modify the api. The first candidate to use this feature will be the Oceanic BLE communication. The dc_iostream_set_latency function will be removed, and re-implemented as an ioctl. This function isn't used anywhere in libdivecomputer, and is only relevant for the serial communication. Hence it's a perfect example of a feature than can be implemented as an ioctl. A new dc_iostream_poll function will be added. This provides a more efficient alternative to using using a combination of the dc_iostream_get_available and dc_iostream_sleep functions. For all the built-in I/O transports, these changes will be completely transparent. But users of the custom I/O will need to update their code because the corresponding function pointers will be added/removed to/from the dc_custom_cbs_t structure. Jef

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devel January 2020