- What I did

• Fix error handling in scd_xcvr_add
• Check sysfs_create_file properly and print error messages
• Fix the removal order in scd_smbus_master_remove
• Move actual IO ops to scd_smbus_do_impl
• Comment functions that have to be called with scd lock held
• Fix minor problems
• Improve error handling in scd_lpc_enable
• Fix error handling
• Fix error handling in scd_pci_enable
• Swap localbus and mem deinitialization in scd_pci_enable
• Fix error hanling in scd_finish_init
• Extend scd mutex aquisition across setting/clearing ardma_ops
• Sync the scd-driver with the last version from EOS
• Add ARISTA_SCD_DRIVER_CONFIG flag to sonic drivers build
• scd drivers minor fixes
• Add reboot functionality for 7260cx3-64
• Include reboot functionality into driver library
• Fix platform key for sonic-cfggen
• Fix FileLock for BACKGROUND components
• src/scd-hwmon.c: Prevent smbus_check_resp from flooding dmesg
• Extend DCS-7170-64 support
• Force pci rescan if switch chip is not showing up
• Add support for syslog
• Fix running arista util without root rights
• Fix non-fully initialized PSUs
• Use Upperlake's CPLD to obtain the PSU status on 7050QX-32S
• Prevent scd-hwmon from double kfree
• Add watchdog support on new platforms
• Bump platform descriptions with the last Scd.createPsu
• Use pmbus to obtain the PSU status
• Add DCS-7170-64C to the supported sku list
• Change how to determinew platform in boot-eos
• Fix xcvr offsets for 7170-64C
• Refactor parsePortConfig out of LedPlugin
• Add basic platform support for DCS-7170-64
• Increase watchdog timeout for 7260CX3-64
• Assert module select for QSFPs
• Force smbus retry on any kind of error
• Fix smbus timings for a7050qx32 and a7050qx32s
• Fix starting of watchdog in sonic-platform-arista
• Implement watchdog in scd
• Fix scd-hwmon logging
• Add debug trace for SMBus transaction
• Remove the old scd driver
• Add waitting of SCD initialization
• Watchdog refactoring
• PciComponent and PciKernelDriver refactoring
• Switch to using closing instead of explicit open/close

- How I did it

- How to verify it

- Description for the changelog

Update arista driver submodule

- A picture of a cute animal (not mandatory but encouraged)