Specifications

Then four entries describe how to read if a device is present, select the MUX for accessing the device, reset or not reset the device, and
read data from the device.
• Present:
• Bus to use to access presence indicators
• Address of the device that indicates presence
• Register of the device that indicates presence
• Bits in the register that indicates presence—supports single bit and low-to-high range
• Value of the bits that indicates presence
• MUX settings to access the device
• Select—Hardware gating.
• Bus to use to access presence indicators
• Address of the device that indicates presence
• Register of the device that indicates presence
• Bits in the register that indicates presence—supports single bit and low-to-high range
• Value of the bits that indicates presence
• MUX settings to access the device
• Reset—Hardware reset of the device.
• Bus to use to access presence indicators
• Address of the device that indicates presence
• Register of the device that indicates presence
• Bits in the register that indicates presence—supports single bit and low-to-high range
• Value of the bits that indicates presence
• MUX settings to access the device
• Data:
• Bus to use to access the device
• Address of device on the bus
• MUX settings to access the device
# portnum | Name
# Present | dev | addr | reg(:reg size) | bit(s) | p_val | <mux type> addr:buss
:mask:val:,:addr:bus:mask:val
# Select | dev | addr | reg(:reg size) | bit(s) | p_val | <mux type> addr:buss
:mask:val:,:addr:bus:mask:val
# Power | dev | addr | reg(:reg size) | bit(s) | p_val | <mux type> addr:buss
:mask:val:,:addr:bus:mask:val
# Reset | dev | addr | reg(:reg size) | bit(s) | p_val | <mux type> addr:buss
:mask:val:,:addr:bus:mask:val
# Interrupt | dev | addr | reg(:reg size) | bit(s) | p_val | <mux type> addr:buss
:mask:val:,:addr:bus:mask:val
# Data | dev | addr | <mux type> addr:bus:mask:val:,:addr:bus:mask:val
#
# CPLD2
1 | SFP+ 1
Present | /dev/i2c-1 | 0x3e | 0x001c:0x10 | 0 | 0 | /dev/i2c-1 0x70:0x0:0xf:0xa::
,:0x71:0x10:0xf:0x10
Select | - | 0x00 | 0x00 |0 | 0 | - 0x00:0x0:0x0:0x0
Power | - | 0x00 | 0x00 |0 | 0 | - 0x00:0x0:0x0:0x0
Reset | - | 0x00 | 0x00 |0 | 0 | - 0x00:0x0:0x0:0x0
Intr | - | 0x00 | 0x00 |0 | 0 | - 0x00:0x0:0x0:0x0
Data | /dev/i2c-1 | 0x50 | /dev/i2c-1 0x70:0x0:0xf:0xd:,:0x72:0x01:0xf:0x01
2 | SFP+ 2
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