STM32F4 USB MSC code works with windows and linux but not with android USB OTG

[PHolt.1]

Spent a lot of time on this and found that ST's code omits a key SCSI command which windoze and linux either do not issue or if they do they are not bothered by a non-response.

Details around here

https://www.eevblog.com/forum/microcontrollers/any-way-to-do-a-fat16-usb-msc-drive-in-2mb-flash/msg6206067/#msg6206067

[FBL]

Hi @PHolt.1 

Do you propose at this level to extend SCSI_ProcessCmd to handle 0x35 acknowledge success and return 0? 

[PHolt.1]

Yes - see the source I posted on EEVBLOG.

It now works with Android.

I have not yet tested Ipad (IOS).