[ 1.408611] usb 1-1: New USB device found, idVendor=05e3, idProduct=0723
[ 1.415634] usb 1-1: New USB device strings: Mfr=3, Product=4, SerialNumber=2
[ 1.423083] usb 1-1: Product: USB Storage
[ 1.427259] usb 1-1: Manufacturer: Generic
[ 1.431628] usb 1-1: SerialNumber: 000000009451
[ 1.438238] usb-storage 1-1:1.0: Quirks match for vid 05e3 pid 0723: 8000
[ 1.445406] scsi0 : usb-storage 1-1:1.0
[ 2.442591] scsi 0:0:0:0: Direct-Access Generic STORAGE DEVICE 9451 PQ: 0 ANSI: 0
[ 2.590946] omap_i2c omap_i2c.2: wait_for_completion_timeout:controller timed out
[ 2.610972] msg ft5x0x_read_reg i2c read error: -110
[ 2.766449] sd 0:0:0:0: [sda] 15529984 512-byte logical blocks: (7.95 GB/7.40 GiB)
[ 2.775125] sd 0:0:0:0: [sda] Write Protect is off
[ 2.780891] sd 0:0:0:0: [sda] No Caching mode page present
[ 2.786623] sd 0:0:0:0: [sda] Assuming drive cache: write through
[ 2.796497] sd 0:0:0:0: [sda] No Caching mode page present
[ 2.802244] sd 0:0:0:0: [sda] Assuming drive cache: write through
[ 3.276165] sd 0:0:0:0: [sda] Unhandled sense code
[ 3.281182] sd 0:0:0:0: [sda] Result: hostbyte=0x00 driverbyte=0x08
[ 3.287813] sd 0:0:0:0: [sda] Sense Key : 0x3 [current]
[ 3.293462] sd 0:0:0:0: [sda] ASC=0x47 ASCQ=0x1
[ 3.298281] sd 0:0:0:0: [sda] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 08 00
[ 1.415634] usb 1-1: New USB device strings: Mfr=3, Product=4, SerialNumber=2
[ 1.423083] usb 1-1: Product: USB Storage
[ 1.427259] usb 1-1: Manufacturer: Generic
[ 1.431628] usb 1-1: SerialNumber: 000000009451
[ 1.438238] usb-storage 1-1:1.0: Quirks match for vid 05e3 pid 0723: 8000
[ 1.445406] scsi0 : usb-storage 1-1:1.0
[ 2.442591] scsi 0:0:0:0: Direct-Access Generic STORAGE DEVICE 9451 PQ: 0 ANSI: 0
[ 2.590946] omap_i2c omap_i2c.2: wait_for_completion_timeout:controller timed out
[ 2.610972] msg ft5x0x_read_reg i2c read error: -110
[ 2.766449] sd 0:0:0:0: [sda] 15529984 512-byte logical blocks: (7.95 GB/7.40 GiB)
[ 2.775125] sd 0:0:0:0: [sda] Write Protect is off
[ 2.780891] sd 0:0:0:0: [sda] No Caching mode page present
[ 2.786623] sd 0:0:0:0: [sda] Assuming drive cache: write through
[ 2.796497] sd 0:0:0:0: [sda] No Caching mode page present
[ 2.802244] sd 0:0:0:0: [sda] Assuming drive cache: write through
[ 3.276165] sd 0:0:0:0: [sda] Unhandled sense code
[ 3.281182] sd 0:0:0:0: [sda] Result: hostbyte=0x00 driverbyte=0x08
[ 3.287813] sd 0:0:0:0: [sda] Sense Key : 0x3 [current]
[ 3.293462] sd 0:0:0:0: [sda] ASC=0x47 ASCQ=0x1
[ 3.298281] sd 0:0:0:0: [sda] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 08 00
[ 6.601090] usb 1-1: reset high-speed USB device number 2 using musb-hdrc
[ 7.185491] sd 0:0:0:0: [sda] Media Changed
[ 7.189887] sd 0:0:0:0: [sda] Result: hostbyte=0x00 driverbyte=0x08
[ 7.196570] sd 0:0:0:0: [sda] Sense Key : 0x6 [current]
[ 7.202223] sd 0:0:0:0: [sda] ASC=0x28 ASCQ=0x0
[ 7.207042] sd 0:0:0:0: [sda] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 08 00
[ 7.214541] end_request: I/O error, dev sda, sector 0
[ 7.219813] Buffer I/O error on device sda, logical block 0
[ 7.225723] sda: unable to read partition table
[ 7.354064] sd 0:0:0:0: [sda] No Caching mode page present
[ 7.359808] sd 0:0:0:0: [sda] Assuming drive cache: write through
[ 7.366240] sd 0:0:0:0: [sda] Attached SCSI removable disk
[ 7.185491] sd 0:0:0:0: [sda] Media Changed
[ 7.189887] sd 0:0:0:0: [sda] Result: hostbyte=0x00 driverbyte=0x08
[ 7.196570] sd 0:0:0:0: [sda] Sense Key : 0x6 [current]
[ 7.202223] sd 0:0:0:0: [sda] ASC=0x28 ASCQ=0x0
[ 7.207042] sd 0:0:0:0: [sda] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 08 00
[ 7.214541] end_request: I/O error, dev sda, sector 0
[ 7.219813] Buffer I/O error on device sda, logical block 0
[ 7.225723] sda: unable to read partition table
[ 7.354064] sd 0:0:0:0: [sda] No Caching mode page present
[ 7.359808] sd 0:0:0:0: [sda] Assuming drive cache: write through
[ 7.366240] sd 0:0:0:0: [sda] Attached SCSI removable disk
以上是内核识别的打印信息,是怎么回事呢???
Jian Zhou:
首先问下我们有3个SD卡接口,为什么还要用USB转呢?
pengwei qiu:
回复 Jian Zhou:
MMC0用作系统启动,MMC1复用为GPMCFPGA通信,MMC2复用为网络接口了,现在数据量大,需要扩展,所以就想到用USB来扩展,现在USB1口接读卡器可以识别出SD卡,把SD卡里面的电路搬到板子上,就识别不出SD卡了??
Jun Xiao97:
回复 Jian Zhou:
问你为什么出问题,你倒好,反问问什么要用???
Jun Xiao97:
你好!问题解决了吗?我也遇到类似的问题。
yongqing wang:
回复 Jun Xiao97:
使用啥转换芯片呢?系统有集成对应的驱动吗
Jun Xiao97:
回复 yongqing wang:
我的是直接USB接U盘,但是问题打印和楼主的一样
yongqing wang:
回复 Jun Xiao97:
使用是么板?USB是否在OTG模式