57 lines
1.7 KiB
Plaintext
57 lines
1.7 KiB
Plaintext
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What: /sys/bus/cdx/rescan
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Date: March 2023
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Contact: nipun.gupta@amd.com
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Description:
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Writing y/1/on to this file will cause rescan of the bus
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and devices on the CDX bus. Any new devices are scanned and
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added to the list of Linux devices and any devices removed are
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also deleted from Linux.
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For example::
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# echo 1 > /sys/bus/cdx/rescan
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What: /sys/bus/cdx/devices/.../vendor
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Date: March 2023
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Contact: nipun.gupta@amd.com
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Description:
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Vendor ID for this CDX device, in hexadecimal. Vendor ID is
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16 bit identifier which is specific to the device manufacturer.
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Combination of Vendor ID and Device ID identifies a device.
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What: /sys/bus/cdx/devices/.../device
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Date: March 2023
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Contact: nipun.gupta@amd.com
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Description:
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Device ID for this CDX device, in hexadecimal. Device ID is
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16 bit identifier to identify a device type within the range
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of a device manufacturer.
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Combination of Vendor ID and Device ID identifies a device.
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What: /sys/bus/cdx/devices/.../reset
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Date: March 2023
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Contact: nipun.gupta@amd.com
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Description:
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Writing y/1/on to this file resets the CDX device.
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On resetting the device, the corresponding driver is notified
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twice, once before the device is being reset, and again after
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the reset has been complete.
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For example::
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# echo 1 > /sys/bus/cdx/.../reset
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What: /sys/bus/cdx/devices/.../remove
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Date: March 2023
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Contact: tarak.reddy@amd.com
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Description:
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Writing y/1/on to this file removes the corresponding
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device from the CDX bus. If the device is to be reconfigured
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reconfigured in the Hardware, the device can be removed, so
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that the device driver does not access the device while it is
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being reconfigured.
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For example::
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# echo 1 > /sys/bus/cdx/devices/.../remove
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