5742b0c950
Partial OTG support for dummy_hcd, mostly as a framework for further work.
It emulates the new OTG flags in the host and peripheral frameworks, if
that option is configured. But it's incomplete:
- Resetting the peripheral needs to clear the OTG state bits;
a second enumeration won't work correctly.
- This stops modeling HNP right when roles should switch the first time.
It should probably disconnect, then set the usb_bus.is_b_host and
usb_gadget.is_a_peripheral flags; then it'd enumerate almost normally,
except for the role reversal. Roles could then switch a second time,
back to "normal" (with those flags cleared).
- SRP should be modeled as "resume from port-unpowered", which is
a state that usbcore doesn't yet use.
HNP can be triggered by enabling the OTG whitelist and configuring a
gadget driver that's not in that list; or by configuring Gadget Zero
to identify itself as the HNP test device.
Sent-by: David Brownell <david-b@pacbell.net>
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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|---|---|---|
| .. | ||
| config.c | ||
| dummy_hcd.c | ||
| epautoconf.c | ||
| ether.c | ||
| file_storage.c | ||
| gadget_chips.h | ||
| goku_udc.c | ||
| goku_udc.h | ||
| inode.c | ||
| Kconfig | ||
| lh7a40x_udc.c | ||
| lh7a40x_udc.h | ||
| Makefile | ||
| ndis.h | ||
| net2280.c | ||
| net2280.h | ||
| omap_udc.c | ||
| omap_udc.h | ||
| pxa2xx_udc.c | ||
| pxa2xx_udc.h | ||
| rndis.c | ||
| rndis.h | ||
| serial.c | ||
| usbstring.c | ||
| zero.c | ||