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Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
usb: gadget: udc: document our sysfs ABI
I noticed that this has been missing for quite
some time so I decided it was about time to
document it.
Signed-off-by: Felipe Balbi <balbi@ti.com>
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+93
Documentation/ABI/stable/sysfs-class-udc
+93
Documentation/ABI/stable/sysfs-class-udc
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What: /sys/class/udc/<udc>/a_alt_hnp_support
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Date: June 2011
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KernelVersion: 3.1
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Contact: Felipe Balbi <balbi@kernel.org>
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Description:
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Indicates if an OTG A-Host supports HNP at an alternate port.
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Users:
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What: /sys/class/udc/<udc>/a_hnp_support
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Date: June 2011
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KernelVersion: 3.1
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Contact: Felipe Balbi <balbi@kernel.org>
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Description:
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Indicates if an OTG A-Host supports HNP at this port.
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Users:
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What: /sys/class/udc/<udc>/b_hnp_enable
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Date: June 2011
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KernelVersion: 3.1
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Contact: Felipe Balbi <balbi@kernel.org>
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Description:
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Indicates if an OTG A-Host enabled HNP support.
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Users:
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What: /sys/class/udc/<udc>/current_speed
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Date: June 2011
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KernelVersion: 3.1
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Contact: Felipe Balbi <balbi@kernel.org>
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Description:
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Indicates the current negotiated speed at this port.
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Users:
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What: /sys/class/udc/<udc>/is_a_peripheral
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Date: June 2011
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KernelVersion: 3.1
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Contact: Felipe Balbi <balbi@kernel.org>
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Description:
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Indicates that this port is the default Host on an OTG session
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but HNP was used to switch roles.
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Users:
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What: /sys/class/udc/<udc>/is_otg
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Date: June 2011
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KernelVersion: 3.1
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Contact: Felipe Balbi <balbi@kernel.org>
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Description:
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Indicates that this port support OTG.
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Users:
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What: /sys/class/udc/<udc>/maximum_speed
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Date: June 2011
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KernelVersion: 3.1
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Contact: Felipe Balbi <balbi@kernel.org>
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Description:
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Indicates the maximum USB speed supported by this port.
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Users:
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What: /sys/class/udc/<udc>/maximum_speed
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Date: June 2011
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KernelVersion: 3.1
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Contact: Felipe Balbi <balbi@kernel.org>
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Description:
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Indicates the maximum USB speed supported by this port.
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Users:
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What: /sys/class/udc/<udc>/soft_connect
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Date: June 2011
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KernelVersion: 3.1
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Contact: Felipe Balbi <balbi@kernel.org>
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Description:
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Allows users to disconnect data pullup resistors thus causing a
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logical disconnection from the USB Host.
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Users:
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What: /sys/class/udc/<udc>/srp
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Date: June 2011
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KernelVersion: 3.1
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Contact: Felipe Balbi <balbi@kernel.org>
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Description:
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Allows users to manually start Session Request Protocol.
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Users:
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What: /sys/class/udc/<udc>/state
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Date: June 2011
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KernelVersion: 3.1
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Contact: Felipe Balbi <balbi@kernel.org>
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Description:
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Indicates current state of the USB Device Controller. Valid
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states are: 'not-attached', 'attached', 'powered',
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'reconnecting', 'unauthenticated', 'default', 'addressed',
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'configured', and 'suspended'; however not all USB Device
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Controllers support reporting all states.
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Users: