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研究总结,driver/ata/libata-core.c 会作blacklist屏蔽一些厂商的驱动。
fedora AHCI模式就可以,识别的光驱。但是IDE模式无法时别
这是我抓取的dmesg信息:
[ 3.295637] ata2.00: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
[ 3.298704] ata2.00: ATAPI: TSSTcorp CDDVDW TS-L633F, CH00, max UDMA/100
[ 3.320698] ata2.00: configured for UDMA/100
[ 3.421288] ata2.00: TEST_UNIT_READY failed (err_mask=0x2)
[ 9.756616] ata2.00: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
[ 9.781637] ata2.00: configured for UDMA/100
[ 14.780051] ata2.00: qc timeout (cmd 0xa0)
[ 14.780056] ata2.00: TEST_UNIT_READY failed (err_mask=0x4)
[ 14.780061] ata2.00: limiting SATA link speed to 1.5 Gbps
[ 14.780064] ata2.00: limiting speed to UDMA/100 IO3
[ 16.242561] ata2.00: SATA link up 1.5 Gbps (SStatus 113 SControl 310)
[ 16.267583] ata2.00: configured for UDMA/100
[ 21.265867] ata2.00: qc timeout (cmd 0xa0)
[ 21.265871] ata2.00: TEST_UNIT_READY failed (err_mask=0x4)
[ 21.265874] ata2.00: disabled
[ 21.265897] ata2.00: hard resetting link
[ 22.728480] ata2.00: SATA link up 1.5 Gbps (SStatus 113
问题出现 configure for UDMA/100 无法找到合适的配置导致不能去动光驱。
但不知道如何从kernel中许找到这个位置;
还请高手 |
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