i.MX Processorsのトピックandroid 4.4.2 u disk issue !

android 4.4.2 u disk issue !

liyu1 — Tue, 14 Apr 2015 06:39:57 GMT

Hi all :

I found Android 4.4.2 some U disk counld not mount, But some U disk could mount ! I don't know the reason !

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 !

Re: android 4.4.2 u disk issue !

igorpadykov — Wed, 15 Apr 2015 00:26:54 GMT

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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Re: android 4.4.2 u disk issue !

liyu1 — Wed, 15 Apr 2015 02:41:05 GMT

Hi igorpadykov :

my custom board tested in Android 4.2.2 is no this issue ! But 4.4.2 has !

Re: android 4.4.2 u disk issue !

liyu1 — Wed, 15 Apr 2015 02:43:44 GMT

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

Re: android 4.4.2 u disk issue !

liyu1 — Wed, 15 Apr 2015 02:44:46 GMT

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

Re: android 4.4.2 u disk issue !

huangkc — Tue, 18 Aug 2015 01:44:06 GMT

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?