Hello! I compiled usb.c for both an ARM cortex a5 (kernel 3.6.9) and a9 (3.0.35). Both are connected to the same host when I run the binary with verbose output. One of them (the one on the A5) appears very quickly as a USB device in USB device tree viewer and has all the correct string descriptors set. However the second one (i.mx6 board) takes a long time to show up and then there are no string descriptors visible. Only "*!* string descriptors are not available because device is in low power state" instead of iManufacturer, iProduct etc. Also, under "Device Information" in USB device tree viewer it says "Capabilities: Removable, UniqueID" on the Cortex A5 whereas UniqueID is missing on the A9. What could be the cause for this issue? This is the verbose output on the A5: /dev/gadget/atmel_usba_udc ep0 configured serial="yyrczl3j39ido7t97zvv2s6l3tarb8t3r9whdjs5m2uffu8ww1sakk8i9qlwmm9" ** Thu Jan 1 00:38:19 1970 CONNECT high speed DISCONNECT CONNECT high speed SETUP 80.06 v0303 i0409 255 SETUP 80.06 v0300 i0000 255 SETUP 80.06 v0302 i0409 255 SUSPEND DISCONNECT CONNECT high speed DISCONNECT CONNECT high speed SETUP 80.06 v0303 i0409 255 SETUP 80.06 v0300 i0000 255 SETUP 80.06 v0302 i0409 255 SETUP 80.06 v0300 i0000 255 SETUP 80.06 v0301 i0409 255 SETUP 80.06 v0302 i0409 255 SETUP 80.06 v0303 i0409 255 SETUP 80.06 v0304 i0409 255 SETUP 80.06 v0305 i0409 255 SETUP 80.06 v0300 i0000 255 SETUP 80.06 v0301 i0409 255 SETUP 80.06 v0302 i0409 255 SETUP 80.06 v0303 i0409 255 SETUP 80.06 v0304 i0409 255 SETUP 80.06 v0305 i0409 255 SETUP 80.06 v0300 i0000 255 SETUP 80.06 v0301 i0409 255 SETUP 80.06 v0302 i0409 255 SETUP 80.06 v0303 i0409 255 SETUP 80.06 v0304 i0409 255 SETUP 80.06 v0305 i0409 255 This is from the one running ont he A9: /dev/gadget/fsl-usb2-udc ep0 configured serial="i73kaxk4afvigfp1nzpzsckbkv7ayl4znr4rfyc47k99mraqheuqs6w7ajeni18" ** Wed Feb 26 10:02:02 2014 SUSPEND CONNECT high speed DISCONNECT CONNECT high speed SETUP 80.06 v0303 i0409 255 SETUP 80.06 v0300 i0000 255 SUSPEND DISCONNECT CONNECT high speed DISCONNECT CONNECT high speed SETUP 80.06 v0303 i0409 255 SETUP 80.06 v0300 i0000 255 -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
