We can't go higher than 29 because of NR_LDISCS == 30 in Linux 5.0.
We can't go lower than 28 because of N_NULL == 27 in Linux 5.0.
#!/bin/bash
-sudo ldattach --debug --speed 38400 --eightbits --noparity --onestopbit --iflag -ICRNL,INLCR,-IXOFF 26 $@
+sudo ldattach --debug --speed 38400 --eightbits --noparity --onestopbit --iflag -ICRNL,INLCR,-IXOFF 29 $@
/* Line discipline ID number */
#ifndef N_ELMCAN
-#define N_ELMCAN 26
+#define N_ELMCAN 29
#endif
#define ELM327_CAN_CONFIG_SEND_SFF 0x8000