Unnamed repository; edit this file 'description' to name the repository. http://cgit.235523.xyz/tinyusb.git/atom/src/device/usbd.c?h=0.13.0 2021-12-30T13:59:53Z 2021-12-30T13:59:53Z hathach thach@tinyusb.org 2021-12-30T13:59:53Z urn:sha1:c5d2c82cbbabf02cef16c2da565867f63900f69b 2021-11-30T09:19:10Z Yunhao Tian t123yh@outlook.com 2021-11-30T09:10:53Z urn:sha1:dba59217da489dc497cbe2b573e7e144d085c869 2021-10-17T09:36:53Z hathach thach@tinyusb.org 2021-10-17T09:26:27Z urn:sha1:a5f516893bbd539f11fb8d1cbb5b6db5a50fc632 2021-10-15T16:54:31Z hathach thach@tinyusb.org 2021-10-15T10:35:05Z urn:sha1:0b249618b0469529da748e3e5478751cd56acd31 2021-10-12T15:01:02Z Ha Thach thach@tinyusb.org 2021-10-12T15:01:02Z urn:sha1:379537cb6deed9c9c055d0fd34d9a941f47ffc02 2021-10-05T09:00:07Z hathach thach@tinyusb.org 2021-10-05T05:32:07Z urn:sha1:a867d87072e6f25e47f209e9615e00b97a9eb36f 2021-10-01T14:52:29Z hathach thach@tinyusb.org 2021-10-01T14:52:29Z urn:sha1:fdd1e4fbf03726703cba701f9ea7d9541e9bab9e 2021-09-29T12:23:14Z kkitayam 45088311+kkitayam@users.noreply.github.com 2021-07-17T09:51:33Z urn:sha1:97d5d1e491565d6d546bcf27af1ff3525f3df722 2021-09-29T09:18:17Z hathach thach@tinyusb.org 2021-09-29T09:18:17Z urn:sha1:0b31c40b9f84e8207d78a3196a755be53356534f 2021-09-24T12:19:04Z Jerzy Kasenberg jerzy.kasenberg@codecoup.pl 2021-09-23T12:03:22Z urn:sha1:c62c1433e7d35ee18d97a7c76a4de91aa66a9486 Windows and Linux host during enumeration requests device descriptor with request size set to 64 bytes when device was in default state (no address). Those systems do not want 64 bytes though since usb descriptors is only 18 bytes long so they silently expect that only one packet will be received possibly 18 bytes for EPS > 16 or 8 or 16 bytes for smaller EP0. For devices with CFG_TUD_ENDPOINT0_SIZE size 8 or 16 there was workaround that reduced request size to CFG_TUD_ENDPOINT0_SIZE and that was enough to satisfy Windows and Linux hosts. However USBCV testing application also requests device descriptor but with size set to 18 bytes. Workaround for Window/Linux prevented USBVC to tests devices with 8 bytes EP0 size since it send only 8 bytes while application did wanted 18 bytes. Solution that satisfies both cases it to check if in default state device descriptor request wants more bytes than descriptor size (18). If so host is expecting to receive less bytes then requested and workaround would be applied since Linux/Windows only try to read one packet. If 18 bytes was requested as is the case for USBCV, core returns descriptor in 2 or 3 packets as application expects.