Comments (3)
mmoskal
commented on May 25, 2024
Unfortunately, I'm not much of a Windows driver expert. I thought things were working, as reported by @ladyada, but it seems they might not. It's clearly possible to make it all work, as evidenced by ARM MBED drivers, which support both MSC and CDC (and HID), but I'm not quite sure how.
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ladyada
commented on May 25, 2024
it does work but only if you do a golden path install. deviations dont work. we're not sure whts up but somehow it seems (i think) that the win7 os attaches the CDC driver to the MSC endpoints!
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dhalbert
commented on May 25, 2024
We fixed this by always specifying MI in the device descriptors in the .inf file. See adafruit/Adafruit_Windows_Drivers#5.
So now we have entries like
"%METRO_M0_EXPRESS% (0013:00)"=DriverInstall, USB\VID_239A&PID_0013&MI_00
"%METRO_M0_EXPRESS% (8013:00)"=DriverInstall, USB\VID_239A&PID_8013&MI_00
"%METRO_M0_EXPRESS% (8014:00)"=DriverInstall, USB\VID_239A&PID_8014&MI_00
Previously, for some drivers, we only had something like:
USB\VID_239A&PID_0013
Composite devices that did not specify MI=00 were being installed and then were hiding and/or confusing the multiple interfaces presented by the devices. So for instance, the MSC device for UF2 was not appearing.
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Related Issues (20)
- bin2uf2.js throwing deprecation warning HOT 2
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- Encountered two compile errors and propose a patch HOT 1
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- Which Bootloader for ATSAMD21G18A-AU? HOT 3
- This repo is missing important files
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- Add .bin for Seeed Wio Lite w600
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- purpose of flash_write() function in flash_samd21.c? HOT 2
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