#21617: yota 4G modem hotplug fails
------------------------------+------------------------
Reporter: bolvan | Owner: developers
Type: defect | Status: new
Priority: normal | Milestone:
Component: base system | Version: Trunk
Keywords: usb hotplug yota |
------------------------------+------------------------
My platform is Netgear WNDR3700 and I want to run Yota 4G modem.
Here is the original thread i posted on the forum :
https://forum.openwrt.org/viewtopic.php?id=62168
This device on power on present itself as USB CDROM then after 2 seconds
disconnects itself and represent as USB ethernet adapter.
In openwrt after cold boot (power was off) for some reason device has no
associated driver and does not work until physically replugged.
When manually replugged - all works fine :
{{{
[ 245.180262] usb 1-1: new high-speed USB device number 4 using ehci-
platform
[ 245.320045] usb-storage 1-1:1.0: USB Mass Storage device detected
[ 245.336509] scsi host1: usb-storage 1-1:1.0
[ 246.345228] scsi 1:0:0:0: CD-ROM GDM Mass
PQ: 0 ANSI: 0 CCS
[ 246.356242] scsi 1:0:0:0: Attached scsi generic sg0 type 5
[ 247.323757] usb 1-1: USB disconnect, device number 4
[ 248.112735] usb 1-1: new high-speed USB device number 5 using ehci-
platform
[ 248.252992] rndis_host 1-1:1.0: dev can't take 1558 byte packets (max
1458), adjusting MTU to 1400
[ 248.274540] rndis_host 1-1:1.0 eth2: register 'rndis_host' at usb-ehci-
platform-1, RNDIS device, 00:09:3b:f0:1a:40
T: Bus=01 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 5 Spd=480 MxCh= 0
D: Ver= 2.00 Cls=02(comm.) Sub=00 Prot=00 MxPS=64 #Cfgs= 1
P: Vendor=1076 ProdID=8002 Rev= 1.00
S: Manufacturer=GCT SEMICONDUCTOR Inc
S: Product=Modem Yota
C:* #Ifs= 2 Cfg#= 1 Atr=80 MxPwr= 0mA
I:* If#= 0 Alt= 0 #EPs= 1 Cls=e0(wlcon) Sub=01 Prot=03 Driver=rndis_host
E: Ad=81(I) Atr=03(Int.) MxPS= 64 Ivl=1ms
I:* If#= 1 Alt= 0 #EPs= 2 Cls=0a(data ) Sub=00 Prot=00 Driver=rndis_host
E: Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=83(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
}}}
After cold boot :
{{{
[ 11.458595] procd: - early -
[ 11.461575] procd: - watchdog -
[ 11.553077] usb 1-1: new high-speed USB device number 2 using ehci-
platform
[ 12.229948] procd: - ubus -
[ 13.239815] procd: - init -
T: Bus=01 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 2 Spd=480 MxCh= 0
D: Ver= 2.00 Cls=02(comm.) Sub=00 Prot=00 MxPS=64 #Cfgs= 1
P: Vendor=1076 ProdID=8003 Rev= 1.00
S: Manufacturer=GCT SEMICONDUCTOR Inc
S: Product=Modem Yota
C:* #Ifs= 2 Cfg#= 1 Atr=c0 MxPwr= 0mA
I:* If#= 0 Alt= 0 #EPs= 1 Cls=02(comm.) Sub=06 Prot=00 Driver=(none)
E: Ad=81(I) Atr=03(Int.) MxPS= 64 Ivl=1ms
I:* If#= 1 Alt= 0 #EPs= 2 Cls=0a(data ) Sub=00 Prot=00 Driver=(none)
E: Ad=83(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
}}}
No action is taken, kernel module not loaded, device does not work
Logs are taken from the system where all modules are on squashfs except
kmod-usb2. kmod-usb2 is on overlayfs.
With all modules on squashfs device also does not work.
--
Ticket URL: <https://dev.openwrt.org/ticket/21617>
OpenWrt <http://openwrt.org>
Opensource Wireless Router Technology
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