-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 I was looking at the libata code that handles the ahci staggered spinup feature ( SSS ) and am confused as to how this feature can possibly work. Cross referencing the AHCI spec with the code, it seems that the feature simply delays sending COMRESET and initializing the sata link until we set the SUD bit rather than at power on. According to the ATA specs though, a drive that powers up in standby will remain there until given an explicit command ( either SET FEATURES or a command that requires media access ). In other words, COMRESET will not cause the drive to spin up. Does this feature not really work or am I missing something? -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.17 (MingW32) Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQEcBAEBAgAGBQJSQagwAAoJEJrBOlT6nu75M+wH/2s8N7HxNcnjNSmIAdotpVdS qeKzK2nVu6sTtizcBTcnfYx9FXDDx3E0rNeU3Tgyk+DI0qDSs/faDAHBzly/hs0x f88Nsr4c6DJkPqj+omDQ7dHLt0vAkLn9sfdCCUjm0WqINgklxcOZdmA1PKntPdNT DSpMAo0QoT4PZDxOA6D866JjoQUi/OgKeMwTGrrnptzUoQVpXkWDXK5aFUkO3HmM 6LAoSmXipy7Jwaln2KYmQdhMyd4Zh+8BSB5SzVjCxYoNf33cVqA4lQ2H7bRQZJll DEkEeSuexyJHce0TLiFDryG6aWenlqp5SnP/w0n95HQh5aD0cEZv3E6CAngBde8= =hjty -----END PGP SIGNATURE----- -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
