Interesting you should say that.
The event last April wasn't actually a coup. His private militia opened fire and gunned down several dozen people. That provoked his generals to place him under arrest for murder.
They tried to establish a transitional government, to take them back to the pre-Chavez constitution. The problem is that Chavez has a fair amount of support among the younger officers, who it happens were the ones assigned to guard him.
When the militia and the pro-Chavist mobs seized the presidential palace, his jailers put him on a chopper and flew him back in. The "transitional government" was not prepared to fight, and simply folded.
The temporary "president" was arrested, and has since left the country.
The general who arrested Chavez was charged with treason, and tried by the Supreme Court, who were hand-picked by Chavez. They turned him loose. He was re-charged, and Chavez threatened the Supreme Court justices with arrest if they failed to convict him; they turned him loose again.
This indicates that Chavez's support has eroded mightily when his toadies are no longer obeying him, under threat of arrest.
The general in question went to one of the main plazas in town and announced that he was not going home until Chavez was gone. This was the start of the Altamira movement, which has been demanding Chavez's resignation since.
Since then the militias have continued to shoot and kill opposition demonstrators, and soldiers and officers who express dissent have been murdered.