Whether parole is even a possibility on this sentence depends entirely on what the judge wrote in the Judgment and Commitment Order at the time of sentencing. That document is the controlling authority on parole eligibility. If the judge included a parole provision, the Texas Board of Pardons and Paroles has jurisdiction to consider release before the full sentence is served. If parole is not written into the order, it is not available regardless of conduct or programming.
Two-year sentences resulting from a Motion to Revoke carry parole less frequently than longer sentences, but it does happen depending on the jurisdiction, the original charge, and the judge's discretion at the MTR hearing.
The fastest way to get a definitive answer is to call Garza West and ask to speak with your husband's counselor. Ask specifically whether a parole provision exists in his Judgment and Commitment Order and if so, what the earliest parole eligibility date is. Counselors at TDCJ facilities are generally accessible for these kinds of straightforward questions and can pull up that information relatively quickly.
You can also access the Texas Department of Criminal Justice offender search at tdcj.texas.gov, which displays projected release dates and in some cases parole eligibility information for current inmates. Searching by name or TDCJ number will pull up his current record and give you a starting point before making the call.
If parole is available, the work starts now. A clean record at Garza West from day one is what makes the earliest possible parole hearing productive.