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| | |-+  Sansа Clip Zip - USB not running at top speed
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Author Topic: Sansа Clip Zip - USB not running at top speed  (Read 1678 times)

Offline Mihail Zenkov

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Sansа Clip Zip - USB not running at top speed
« on: September 28, 2014, 06:02:56 PM »
If I plug USB when player off, I have:
Quote
[ 3971.264758] usb 1-1: new high-speed USB device number 4 using ehci-pci
[ 3971.691098] usb 1-1: device not accepting address 4, error -71
[ 3972.124198] usb 3-1: new full-speed USB device number 3 using ohci-pci
[ 3972.773781] usb 3-1: device not accepting address 3, error -62
[ 3972.903726] usb 3-1: new full-speed USB device number 4 using ohci-pci
[ 3972.924912] usb 3-1: not running at top speed; connect to a high speed hub
[ 3973.073589] usb-storage 3-1:1.0: USB Mass Storage device detected
[ 3973.073923] scsi6 : usb-storage 3-1:1.0
[ 3974.083455] scsi 6:0:0:0: Direct-Access     Rockbox  Internal Storage 0.00 PQ: 0 ANSI: 4
[ 3974.089432] scsi 6:0:0:1: Direct-Access     Rockbox  SD Card Slot     0.00 PQ: 0 ANSI: 4
[ 3974.103380] sd 6:0:0:0: [sdb] 7683072 512-byte logical blocks: (3.93 GB/3.66 GiB)
[ 3974.109361] sd 6:0:0:1: [sdc] 61896704 512-byte logical blocks: (31.6 GB/29.5 GiB)
[ 3974.115337] sd 6:0:0:0: [sdb] Write Protect is off
[ 3974.115351] sd 6:0:0:0: [sdb] Mode Sense: 0b 00 00 08
[ 3974.142253] sd 6:0:0:1: [sdc] Write Protect is off
[ 3974.142266] sd 6:0:0:1: [sdc] Mode Sense: 0b 00 00 08
[ 3974.148237] sd 6:0:0:0: [sdb] No Caching mode page found
[ 3974.148248] sd 6:0:0:0: [sdb] Assuming drive cache: write through
[ 3974.154212] sd 6:0:0:1: [sdc] No Caching mode page found
[ 3974.154224] sd 6:0:0:1: [sdc] Assuming drive cache: write through
[ 3974.223013]  sdb:
[ 3974.231989]  sdc: sdc1
[ 3974.285824] sd 6:0:0:0: [sdb] Attached SCSI removable disk
[ 3974.291803] sd 6:0:0:1: [sdc] Attached SCSI removable disk

If I plug USB when player on, I don't have this problem.

Not sure is it right way to fix it, but I just disable USB in bootloader.
* rockbox-disable_usb_in_bootloader.patch.txt (0.48 kB - downloaded 72 times.)
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Offline saratoga

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Re: Sansа Clip Zip - USB not running at top speed
« Reply #1 on: September 28, 2014, 06:04:31 PM »
I get the same thing.  I don't think its the bootloader USB mode that causes it though, that shouldn't be activated unless you hold the select button (I believe).
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Offline Mihail Zenkov

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Re: Sansа Clip Zip - USB not running at top speed
« Reply #2 on: September 28, 2014, 06:07:21 PM »
Quote from: saratoga on September 28, 2014, 06:04:31 PM
I get the same thing.  I don't think its the bootloader USB mode that causes it though, that shouldn't be activated unless you hold the select button (I believe).
But I test it on two players and two system ;)
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Offline saratoga

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Re: Sansа Clip Zip - USB not running at top speed
« Reply #3 on: September 28, 2014, 06:16:09 PM »
Maybe the call to usb_start_monitoring confuses windows?  I'd rather not disable bootloader USB though, its helpful if you copy a build over that can't boot, or if your file system becomes badly corrupted.
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Offline Mihail Zenkov

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Re: Sansа Clip Zip - USB not running at top speed
« Reply #4 on: September 28, 2014, 06:31:12 PM »
You right! Another solution.

EDIT: no need to move usb_init();
* rockbox-fix_usb_v2.patch.txt (0.63 kB - downloaded 89 times.)
« Last Edit: September 28, 2014, 06:42:54 PM by Mihail Zenkov »
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Offline saratoga

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Re: Sansа Clip Zip - USB not running at top speed
« Reply #5 on: September 28, 2014, 07:04:28 PM »
Could you put this on gerrit so that other people can review it?
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Offline Mihail Zenkov

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Re: Sansа Clip Zip - USB not running at top speed
« Reply #6 on: September 29, 2014, 03:23:51 PM »
Done.
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