Re: To otg-fsm or not to otg-fsm? That is the question.

2014-08-14 Thread Peter Chen
On Tue, Aug 12, 2014 at 09:13:47AM -0700, Tim Bird wrote: > On Mon, Aug 11, 2014 at 5:28 PM, Peter Chen wrote: > > The OTG FSM at /usb/common/usb-otg-fsm.c is a software OTG FSM > > implementation > > which follows On-The-Go and Embedded Host Supplement to the USB Revision > > 2.0 Specification

Re: To otg-fsm or not to otg-fsm? That is the question.

2014-08-12 Thread Tim Bird
On Mon, Aug 11, 2014 at 5:28 PM, Peter Chen wrote: > The OTG FSM at /usb/common/usb-otg-fsm.c is a software OTG FSM implementation > which follows On-The-Go and Embedded Host Supplement to the USB Revision 2.0 > Specification > (Revision 2.0 version 1.1a) Chapter 7 State Diagrams. > > If the plat

RE: To otg-fsm or not to otg-fsm? That is the question.

2014-08-11 Thread Peter Chen
> Hey Linux USBer's, > > I'm looking to add host support to the qualcomm OTG USB driver. The > driver in mainline currently has gadget support only. I'm starting with > an out-of-tree driver that has full gadget and host support. It has it's > own OTG state machine implement in the driver, th

To otg-fsm or not to otg-fsm? That is the question.

2014-08-11 Thread Tim Bird
Hey Linux USBer's, I'm looking to add host support to the qualcomm OTG USB driver. The driver in mainline currently has gadget support only. I'm starting with an out-of-tree driver that has full gadget and host support. It has it's own OTG state machine implement in the driver, that I was about