[Bug 209411] When retrieving string descriptor from mobile device returns eproto error

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https://bugzilla.kernel.org/show_bug.cgi?id=209411

--- Comment #43 from rachithas104@xxxxxxxxx ---
(In reply to Lars Melin from comment #42)
> It won't take you long to change your program to select config#0, wait
> 100mS, then select the intended config in order to test if that is the
> problem.

T:  Bus=03 Lev=01 Prnt=01 Port=01 Cnt=01 Dev#=102 Spd=480  MxCh= 0
D:  Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs=  1
P:  Vendor=2717 ProdID=ff18 Rev= 4.19
S:  Manufacturer=Xiaomi
S:  Product=Redmi 
S:  SerialNumber=c2a85d9
C:* #Ifs= 2 Cfg#= 1 Atr=c0 MxPwr=  0mA
I:* If#= 0 Alt= 0 #EPs= 3 Cls=06(still) Sub=01 Prot=01 Driver=usbfs
E:  Ad=81(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=01(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=82(I) Atr=03(Int.) MxPS=  28 Ivl=4ms
I:* If#= 1 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=42 Prot=01 Driver=(none)
E:  Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=83(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms


There is only one configuration

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