Re: [PATCH] Export ahci eSATA attribute

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On 11/13/2010 12:30 AM, Jeff Garzik wrote:
As you noted in your previous mail, the entire PORT_CMD is already
exported as a attribute. I don't see much point in exporting this
information a second time.

Unfortunately it is not exported in a way that udev can make use of it. Firstly because udev can only compare on specific value matches rather than an individual bit, and secondly because it is in the weird scsi_host device rather than the host device, so the attribute is not in an ancestor device of the disk device. Placing this attribute this way puts it in the ancestry of the disk device so it can be matched by a udev ATTRS rule.
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