Hello.
It depends on the intake process for visitation to begin. It it typically 30 days, but I do know it can take longer. My son took 90 days, as did several others. Know of others that took 45-60. Count on 90 and anything you get better, it is a blessing!
You can put money on his books or send him commissary by using the ecomm system. It costs $3.75; cheaper than most other services. Sending a care package is always a nice surprise, too.
https://tdcj-ecommdirect.portal.texas.gov/They do close at 8:30pm-4am.
Hope that helps!
Cheri