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Results tagged with device-driver
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user 58193
A device driver is a specialized software component (usually considered "system software") which allows a system to interact with a particular type or class of hardware device, such as a keyboard, serial port, disk drive, video display, memory controller, or other peripheral.
4
votes
Callback in Linux kernel driver in order to hide device's low-level protocol
Pass arg instead of lcd
Right now, you are passing lcd to your callback function, but the callback function doesn't need lcd. What it needs is the callback argument that you stored in lcd->raw_callb …
- 28.6k
2
votes
Processing text messages from a GSM module
Avoid overlapping strings with strncpy()
I can't speak to the correctness of your algorithm because I don't know why you need to read the same message up to 4 times. But I did spot something non-sta …
- 28.6k
2
votes
7-segment 4-digit display
Use an array instead of functions
Instead of using multiple functions, you can encode your digit segments into a single array. For example:
// Define this array at the top of your program.
static con …
- 28.6k