Hi all :
When I plug in the U disk, reported these message, :
kernel can see the device !
<6>usb 2-1.4: new high speed USB device number 9 using fsl-ehci
<6>scsi3 : usb-storage 2-1.4:1.0
<5>scsi 3:0:0:0: Direct-Access Mass Storage Device 1.00 PQ: 0 ANSI: 0 CCS
<5>sd 3:0:0:0: [sda] 3887104 512-byte logical blocks: (1.99 GB/1.85 GiB)
<5>sd 3:0:0:0: [sda] Write Protect is off
<7>sd 3:0:0:0: [sda] Mode Sense: 03 00 00 00
<3>sd 3:0:0:0: [sda] No Caching mode page present
<3>sd 3:0:0:0: [sda] Assuming drive cache: write through
<3>sd 3:0:0:0: [sda] No Caching mode page present
<3>sd 3:0:0:0: [sda] Assuming drive cache: write through
<6> sda: sda1
<3>sd 3:0:0:0: [sda] No Caching mode page present
<3>sd 3:0:0:0: [sda] Assuming drive cache: write through
<5>sd 3:0:0:0: [sda] Attached SCSI removable disk
But app can't ,and report the message
init: no such service 'fuse_udisk‘ !
who can tell how to Solve it !
Hi li
issue may be caused by weak/noisy usb signal caused
by board noise or improper layout usb lines, check
IMX6DQ6SDLHDG sect.3.11 USB recommendations
Please add more filtering on board power supplies and
run usb tests, one can measure eye diagram.
Patch to make i.MX6DQ USB to support test modes for certification test
Best regards
igor
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If the problem is with USB, could not recognize the device, U disk can be realized in the kernel !
log :
<6>usb 2-1.4: new high speed USB device number 9 using fsl-ehci
<6>scsi3 : usb-storage 2-1.4:1.0
<5>scsi 3:0:0:0: Direct-Access Mass Storage Device 1.00 PQ: 0 ANSI: 0 CCS
<5>sd 3:0:0:0: [sda] 3887104 512-byte logical blocks: (1.99 GB/1.85 GiB)
<5>sd 3:0:0:0: [sda] Write Protect is off
<7>sd 3:0:0:0: [sda] Mode Sense: 03 00 00 00
<3>sd 3:0:0:0: [sda] No Caching mode page present
<3>sd 3:0:0:0: [sda] Assuming drive cache: write through
<3>sd 3:0:0:0: [sda] No Caching mode page present
<3>sd 3:0:0:0: [sda] Assuming drive cache: write through
<6> sda: sda1
<3>sd 3:0:0:0: [sda] No Caching mode page present
<3>sd 3:0:0:0: [sda] Assuming drive cache: write through
<5>sd 3:0:0:0: [sda] Attached SCSI removable disk
hi li yu and igor:
I have a very similar problem。On andorid4.3,my U disk could be recognized and receive notification on the systemUI,also is could be mounted.Everything is ok.The log as follow:
usb 2-1: new high speed USB device number 3 using fsl-ehci
scsi1 : usb-storage 2-1:1.0
scsi 1:0:0:0: Direct-Access Generic- SD/MMC 1.00 PQ: 0 ANSI: 0 CCS
sd 1:0:0:0: [sda] 15523840 512-byte logical blocks: (7.94 GB/7.40 GiB)
sd 1:0:0:0: [sda] Write Protect is off
sd 1:0:0:0: [sda] Mode Sense: 03 00 00 00
sd 1:0:0:0: [sda] No Caching mode page present
sd 1:0:0:0: [sda] Assuming drive cache: write through
sd 1:0:0:0: [sda] No Caching mode page present
sd 1:0:0:0: [sda] Assuming drive cache: write through
sda: sda1
sd 1:0:0:0: [sda] No Caching mode page present
sd 1:0:0:0: [sda] Assuming drive cache: write through
sd 1:0:0:0: [sda] Attached SCSI removable disk
But on andorid4.4.3,The u disk couldn't receive notification on the systemUI and couldn't be mounted though the U disk could be recognized. The log as follow:
usb 1-1: new high-speed USB device number 5 using ci_hdrc
usb 1-1: New USB device found, idVendor=0bda, idProduct=0119
usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
usb 1-1: Product: USB2.0-CRW
usb 1-1: Manufacturer: Generic
usb 1-1: SerialNumber: 20090815198100000
usb-storage 1-1:1.0: USB Mass Storage device detected
scsi3 : usb-storage 1-1:1.0
scsi 3:0:0:0: Direct-Access Generic- SD/MMC 1.00 PQ: 0 ANSI: 0 CCS
sd 3:0:0:0: [sda] 15523840 512-byte logical blocks: (7.94 GB/7.40 GiB)
sd 3:0:0:0: [sda] Write Protect is off
sd 3:0:0:0: [sda] No Caching mode page found
sd 3:0:0:0: [sda] Assuming drive cache: write through
sd 3:0:0:0: [sda] No Caching mode page found
sd 3:0:0:0: [sda] Assuming drive cache: write through
sda: sda1
sd 3:0:0:0: [sda] No Caching mode page found
sd 3:0:0:0: [sda] Assuming drive cache: write through
sd 3:0:0:0: [sda] Attached SCSI removable disk
How do you solve this problem?
If the problem is with USB, could not recognize the device, U disk can be realized in the kernel !
log :
<6>usb 2-1.4: new high speed USB device number 9 using fsl-ehci
<6>scsi3 : usb-storage 2-1.4:1.0
<5>scsi 3:0:0:0: Direct-Access Mass Storage Device 1.00 PQ: 0 ANSI: 0 CCS
<5>sd 3:0:0:0: [sda] 3887104 512-byte logical blocks: (1.99 GB/1.85 GiB)
<5>sd 3:0:0:0: [sda] Write Protect is off
<7>sd 3:0:0:0: [sda] Mode Sense: 03 00 00 00
<3>sd 3:0:0:0: [sda] No Caching mode page present
<3>sd 3:0:0:0: [sda] Assuming drive cache: write through
<3>sd 3:0:0:0: [sda] No Caching mode page present
<3>sd 3:0:0:0: [sda] Assuming drive cache: write through
<6> sda: sda1
<3>sd 3:0:0:0: [sda] No Caching mode page present
<3>sd 3:0:0:0: [sda] Assuming drive cache: write through
<5>sd 3:0:0:0: [sda] Attached SCSI removable disk