[PATCH 1/1] usb: core: Kconfig: refine the description for CONFIG_USB_OTG
peter.chen at freescale.com
Mon May 12 19:19:27 PDT 2014
the user should only select it when the board supports HNP and SRP,
it should NOT be selected if the board only supports dual-role
switch through ID pin.
There is a discussion for it:
Signed-off-by: Peter Chen <peter.chen at freescale.com>
drivers/usb/core/Kconfig | 12 +++++++-----
1 files changed, 7 insertions(+), 5 deletions(-)
diff --git a/drivers/usb/core/Kconfig b/drivers/usb/core/Kconfig
index cb8e991..158048b 100644
@@ -54,13 +54,15 @@ config USB_OTG
The most notable feature of USB OTG is support for a
- "Dual-Role" device, which can act as either a device
- or a host. The initial role is decided by the type of
- plug inserted and can be changed later when two dual
- role devices talk to each other.
+ otg device, which can act as either a device or a host.
+ The initial role is decided by the type of plug inserted
+ and can be changed using HNP (Host Negotiation Protocol)
+ later when two otg devices talk to each other.
Select this only if your board has Mini-AB/Micro-AB
+ connector and supports HNP and SRP (Session Request Protocol).
+ If the board only supports dual-role switch through ID
+ pin, this configuration should not be selected.
bool "Rely on OTG Targeted Peripherals List"
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