dvb-usb ir receiver problem

[elimodel <eli...@gm...>]

hi all!

a ir command related question
i've a dvb-usb sat receiver, tevii s650, with integrated ir receiver, ad
his rc-command
i've the problem that sometime it works and sometime works at half command!
i've investigate, and 've found that work only when i power it the first
time, then  udev load the correct module dvb-usb-dw2102 and the related
firmware.
now, if i reboot the pc, the udev chain works again, i can use the
receiver with vdr without problem, but if i try to use the rc-command
works only the numeric keypad and the direction pad, but the other
button don't work.
i've enabled the debug ir command option onto the module, and i can see
that if i press the menu button
when it's works, i've a respons of '*dw2102_rc_query: found rc key: 1c,
b8, event: 68'
when it don't work, i've a respons of ' **dw2102_rc_query: found rc key:
1c, b8, event: 8b'

e deep analisys let me know (with evtest) that the first time i've this
table

*sudo evtest /dev/input/rmctrl
Input driver version is 1.0.0
Input device ID: bus 0x3 vendor 0x4b4 product 0x2104 version 0x0
Input device name: "IR-receiver inside an USB DVB receiver"
Supported events:
   Event type 0 (Sync)
   Event type 1 (Key)
     Event code 2 (1)
     Event code 3 (2)
     Event code 4 (3)
     Event code 5 (4)
     Event code 6 (5)
     Event code 7 (6)
     Event code 8 (7)
     Event code 9 (8)
     Event code 10 (9)
     Event code 11 (0)
     Event code 59 (F1)
     Event code 60 (F2)
     Event code 61 (F3)
     Event code 62 (F4)
     Event code 63 (F5)
     Event code 64 (F6)
     Event code 103 (Up)
     Event code 105 (Left)
     Event code 106 (Right)
     Event code 108 (Down)
     Event code 113 (Mute)
     Event code 114 (VolumeDown)
     Event code 115 (VolumeUp)
     Event code 116 (Power)
     Event code 134 (Open)
     Event code 139 (Menu)
     Event code 158 (Back)
     Event code 164 (PlayPause)
     Event code 167 (Record)    Event code 168 (Rewind)
     Event code 208 (Fast Forward)
     Event code 227 (?)
     Event code 352 (Ok)
     Event code 358 (Info)
     Event code 359 (Time)
     Event code 364 (Favorites)
     Event code 365 (EPG)
     Event code 366 (PVR)
     Event code 370 (Subtitle)
     Event code 373 (Mode)
     Event code 386 (Tuner)
     Event code 392 (Audio)
     Event code 395 (List)
     Event code 402 (ChannelUp)
     Event code 403 (ChannelDown)
     Event code 405 (Last)
     Event code 406 (AB)
Testing ... (interrupt to exit)


but int the second time, i've this other table:
sudo evtest /dev/input/rmctrl
Input driver version is 1.0.0
Input device ID: bus 0x3 vendor 0x4b4 product 0x2104 version 0x0
Input device name: "IR-receiver inside an USB DVB receiver"
Supported events:
   Event type 0 (Sync)
   Event type 1 (Key)
     Event code 1 (Esc)
     Event code 2 (1)
     Event code 3 (2)
     Event code 4 (3)
     Event code 5 (4)
     Event code 6 (5)
     Event code 7 (6)
     Event code 8 (7)
     Event code 9 (8)
     Event code 10 (9)
     Event code 11 (0)
     Event code 14 (Backspace)
     Event code 16 (Q)
     Event code 17 (W)
     Event code 19 (R)
     Event code 24 (O)
     Event code 25 (P)
     Event code 28 (Enter)
     Event code 30 (A)
     Event code 31 (S)
     Event code 32 (D)
     Event code 33 (F)
     Event code 34 (G)
     Event code 44 (Z)
     Event code 46 (C)
     Event code 48 (B)
     Event code 50 (M)
     Event code 103 (Up)
     Event code 104 (PageUp)
     Event code 108 (Down)
     Event code 109 (PageDown)
Testing ... (interrupt to exit)

like if changes the mapping...... how can i solve this problem??