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Fixed MTP to work with TWRP
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awab228
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157
Documentation/ABI/testing/sysfs-class-mic.txt
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157
Documentation/ABI/testing/sysfs-class-mic.txt
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What: /sys/class/mic/
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Date: October 2013
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KernelVersion: 3.13
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Contact: Sudeep Dutt <sudeep.dutt@intel.com>
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Description:
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The mic class directory belongs to Intel MIC devices and
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provides information per MIC device. An Intel MIC device is a
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PCIe form factor add-in Coprocessor card based on the Intel Many
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Integrated Core (MIC) architecture that runs a Linux OS.
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What: /sys/class/mic/mic(x)
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Date: October 2013
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KernelVersion: 3.13
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Contact: Sudeep Dutt <sudeep.dutt@intel.com>
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Description:
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The directories /sys/class/mic/mic0, /sys/class/mic/mic1 etc.,
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represent MIC devices (0,1,..etc). Each directory has
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information specific to that MIC device.
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What: /sys/class/mic/mic(x)/family
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Date: October 2013
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KernelVersion: 3.13
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Contact: Sudeep Dutt <sudeep.dutt@intel.com>
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Description:
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Provides information about the Coprocessor family for an Intel
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MIC device. For example - "x100"
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What: /sys/class/mic/mic(x)/stepping
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Date: October 2013
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KernelVersion: 3.13
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Contact: Sudeep Dutt <sudeep.dutt@intel.com>
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Description:
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Provides information about the silicon stepping for an Intel
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MIC device. For example - "A0" or "B0"
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What: /sys/class/mic/mic(x)/state
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Date: October 2013
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KernelVersion: 3.13
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Contact: Sudeep Dutt <sudeep.dutt@intel.com>
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Description:
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When read, this entry provides the current state of an Intel
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MIC device in the context of the card OS. Possible values that
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will be read are:
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"offline" - The MIC device is ready to boot the card OS. On
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reading this entry after an OSPM resume, a "boot" has to be
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written to this entry if the card was previously shutdown
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during OSPM suspend.
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"online" - The MIC device has initiated booting a card OS.
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"shutting_down" - The card OS is shutting down.
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"reset_failed" - The MIC device has failed to reset.
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"suspending" - The MIC device is currently being prepared for
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suspend. On reading this entry, a "suspend" has to be written
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to the state sysfs entry to ensure the card is shutdown during
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OSPM suspend.
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"suspended" - The MIC device has been suspended.
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When written, this sysfs entry triggers different state change
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operations depending upon the current state of the card OS.
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Acceptable values are:
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"boot" - Boot the card OS image specified by the combination
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of firmware, ramdisk, cmdline and bootmode
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sysfs entries.
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"reset" - Initiates device reset.
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"shutdown" - Initiates card OS shutdown.
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"suspend" - Initiates card OS shutdown and also marks the card
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as suspended.
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What: /sys/class/mic/mic(x)/shutdown_status
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Date: October 2013
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KernelVersion: 3.13
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Contact: Sudeep Dutt <sudeep.dutt@intel.com>
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Description:
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An Intel MIC device runs a Linux OS during its operation. This
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OS can shutdown because of various reasons. When read, this
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entry provides the status on why the card OS was shutdown.
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Possible values are:
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"nop" - shutdown status is not applicable, when the card OS is
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"online"
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"crashed" - Shutdown because of a HW or SW crash.
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"halted" - Shutdown because of a halt command.
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"poweroff" - Shutdown because of a poweroff command.
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"restart" - Shutdown because of a restart command.
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What: /sys/class/mic/mic(x)/cmdline
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Date: October 2013
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KernelVersion: 3.13
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Contact: Sudeep Dutt <sudeep.dutt@intel.com>
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Description:
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An Intel MIC device runs a Linux OS during its operation. Before
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booting this card OS, it is possible to pass kernel command line
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options to configure various features in it, similar to
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self-bootable machines. When read, this entry provides
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information about the current kernel command line options set to
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boot the card OS. This entry can be written to change the
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existing kernel command line options. Typically, the user would
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want to read the current command line options, append new ones
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or modify existing ones and then write the whole kernel command
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line back to this entry.
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What: /sys/class/mic/mic(x)/firmware
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Date: October 2013
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KernelVersion: 3.13
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Contact: Sudeep Dutt <sudeep.dutt@intel.com>
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Description:
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When read, this sysfs entry provides the path name under
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/lib/firmware/ where the firmware image to be booted on the
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card can be found. The entry can be written to change the
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firmware image location under /lib/firmware/.
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What: /sys/class/mic/mic(x)/ramdisk
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Date: October 2013
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KernelVersion: 3.13
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Contact: Sudeep Dutt <sudeep.dutt@intel.com>
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Description:
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When read, this sysfs entry provides the path name under
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/lib/firmware/ where the ramdisk image to be used during card
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OS boot can be found. The entry can be written to change
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the ramdisk image location under /lib/firmware/.
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What: /sys/class/mic/mic(x)/bootmode
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Date: October 2013
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KernelVersion: 3.13
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Contact: Sudeep Dutt <sudeep.dutt@intel.com>
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Description:
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When read, this sysfs entry provides the current bootmode for
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the card. This sysfs entry can be written with the following
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valid strings:
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a) linux - Boot a Linux image.
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b) elf - Boot an elf image for flash updates.
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What: /sys/class/mic/mic(x)/log_buf_addr
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Date: October 2013
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KernelVersion: 3.13
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Contact: Sudeep Dutt <sudeep.dutt@intel.com>
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Description:
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An Intel MIC device runs a Linux OS during its operation. For
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debugging purpose and early kernel boot messages, the user can
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access the card OS log buffer via debugfs. When read, this entry
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provides the kernel virtual address of the buffer where the card
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OS log buffer can be read. This entry is written by the host
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configuration daemon to set the log buffer address. The correct
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log buffer address to be written can be found in the System.map
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file of the card OS.
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What: /sys/class/mic/mic(x)/log_buf_len
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Date: October 2013
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KernelVersion: 3.13
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Contact: Sudeep Dutt <sudeep.dutt@intel.com>
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Description:
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An Intel MIC device runs a Linux OS during its operation. For
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debugging purpose and early kernel boot messages, the user can
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access the card OS log buffer via debugfs. When read, this entry
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provides the kernel virtual address where the card OS log buffer
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length can be read. This entry is written by host configuration
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daemon to set the log buffer length address. The correct log
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buffer length address to be written can be found in the
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System.map file of the card OS.
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