Hi @davidb2111 and thanks for your help!
My controllers are correctly detected by jstest and the input events works for both (openjvs_a1p1/openjvs_a1p2):
# sdl2-jstest -l
error: failed to read gamecontrollerdb.txt: Invalid RWops
Found 3 joystick(s)
Joystick Name:     '8Bitdo SF30 Pro'
Joystick Path:     '/dev/input/event4'
Joystick GUID:     05000000c82d00000061000000010000
Joystick Number:    0
Number of Axes:     4
Number of Buttons: 16
Number of Hats:     1
Number of B***s:    0
GameControllerConfig:
  Name:    '8BitDo SF30 Pro'
  Mapping: '05000000c82d00000061000000010000,8BitDo SF30 Pro,a:b0,b:b1,back:b10,                                                                                                     dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b2,leftshoulder:b6,leftstic                                                                                                     k:b13,lefttrigger:a5,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrig                                                                                                     ger:a4,rightx:a2,righty:a3,start:b11,x:b3,y:b4,hint:SDL_GAMECONTROLLER_USE_BUTTO                                                                                                     N_LABELS:=1,'
Axis code  0:    0
Axis code  1:    1
Axis code  2:    2
Axis code  3:    5
Button code  0:   304
Button code  1:   305
Button code  2:   306
Button code  3:   307
Button code  4:   308
Button code  5:   309
Button code  6:   310
Button code  7:   311
Button code  8:   312
Button code  9:   313
Button code 10:   314
Button code 11:   315
Button code 12:   316
Button code 13:   317
Button code 14:   318
Button code 15:   319
Hat code  0:   16
Joystick Name:     'openjvs_a1p1'
Joystick Path:     '/dev/input/event2'
Joystick GUID:     000000006f70656e6a76735f61317000
Joystick Number:    1
Number of Axes:     2
Number of Buttons:  8
Number of Hats:     0
Number of B***s:    0
GameControllerConfig:
  missing (see 'gamecontrollerdb.txt' or SDL_GAMECONTROLLERCONFIG)
Axis code  0:    0
Axis code  1:    1
Button code  0:   256
Button code  1:   257
Button code  2:   258
Button code  3:   259
Button code  4:   260
Button code  5:   261
Button code  6:   262
Button code  7:   263
Joystick Name:     'openjvs_a1p2'
Joystick Path:     '/dev/input/event3'
Joystick GUID:     000000006f70656e6a76735f61317000
Joystick Number:    2
Number of Axes:     2
Number of Buttons:  8
Number of Hats:     0
Number of B***s:    0
GameControllerConfig:
  missing (see 'gamecontrollerdb.txt' or SDL_GAMECONTROLLERCONFIG)
Axis code  0:    0
Axis code  1:    1
Button code  0:   256
Button code  1:   257
Button code  2:   258
Button code  3:   259
Button code  4:   260
Button code  5:   261
Button code  6:   262
Button code  7:   263
#sdl2-jstest -t 1
Joystick Name:   'openjvs_a1p1'
Joystick Number: 0
Axes  2:
   0:      0  [                                                                                                                                                    #                                                                                                                                                    ]
   1:      0  [                                                                                                                                                    #                                                                                                                                                    ]
Buttons  8:
   0: 0  [ ]
   1: 0  [ ]
   2: 1  [#]
   3: 0  [ ]
   4: 0  [ ]
   5: 0  [ ]
   6: 0  [ ]
   7: 0  [ ]
Hats  0:
B***s  0:
Press Ctrl-c to exit
Everything is ok on emulationstation, I can easily remap buttons and navigate with all my controllers but when I start any emulators nothing response.