Hi,
First of all I'm not sure this is a regression, but I'm afraid I do not have time to dig deeper so I thought I should report it anyways and then others can try to reproduce it.
I'm seeing the following happen when using a usb stick with a musb-new otg controller in host mode on an allwinner tablet:
sunxi# usb reset resetting USB... USB0: scanning bus 0 for devices... 1 USB Device(s) found scanning usb for storage devices... error in inquiry 0 Storage Device(s) found
The interesting thing is that, the first "usb start" works fine, this only happens on the second usb start (triggered through a usb reset).
This may be specific to using musb on sunxi, or to the flashdrive I have but I thought I should report this anyways. Esp. since usb otherwise works fine after a usb reset, other devices (usb keyboards) continue to work, and the descriptors of the usb drive do get read correctly:
sunxi# usb info 1: Mass Storage, USB Revision 2.0 - USB Flash Disk 4C0E960F - Class: (from Interface) Mass Storage - PacketSize: 64 Configurations: 1 - Vendor: 0x058f Product 0x6387 Version 1.3 Configuration: 1 - Interfaces: 1 Bus Powered 100mA Interface: 0 - Alternate Setting 0, Endpoints: 2 - Class Mass Storage, Transp. SCSI, Bulk only - Endpoint 1 Out Bulk MaxPacket 512 - Endpoint 2 In Bulk MaxPacket 512
Perhaps someone can test the reproducer on another board with usb:
1) plug in a usb drive 2) do "usb start" 3) should print that 1 storage device is found 4) do "usb reset" 5) should still print that 1 storage device is found, but for me gives the error I mentioned above.
Regards,
Hans