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add channel count and device listing functions

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This commit is contained in:
Carl Philipp Klemm 2025-06-30 15:28:48 +02:00
parent db4981628f
commit f69011d589
5 changed files with 121 additions and 0 deletions
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16
eismultiplexer.h
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@ -50,6 +50,7 @@ typedef enum {
CHANNEL_E = (1 << 4),
CHANNEL_F = (1 << 5),
CHANNEL_G = (1 << 6),
CHANNEL_H = (1 << 7),
CHANNEL_NONE = 0,
} channel_t;
@ -57,6 +58,13 @@ struct eismultiplexer {
struct usbshm* priv;
};
/**
* @brief Lists the available eismultiplexer devices
* @param count The number of available eismultiplexer devices
* @return An newly allocated array of length count with the serial numbers of the available devices to be freed by the user with free()
*/
uint16_t* eismultiplexer_list_available_devices(size_t* count);
/**
* @brief Attempts to connect to a EISmultiplexer device and initializes a eismultiplexer struct
* @param multiplexer pointer to a eismultiplexer struct to initialize
@ -105,6 +113,14 @@ channel_t eismultiplexer_get_connected(struct eismultiplexer* muliplexer);
*/
int eismultiplexer_set_led(struct eismultiplexer* muliplexer, bool on);
/**
* @brief Gets the number of channels on the device
* @param multiplexer pointer to an eismultiplexer struct
* @param count a pointer where the nummber of channels will be stored.
* @return 0 on success and < 0 on failure
*/
int eismultiplexer_get_channel_count(struct eismultiplexer* muliplexer, uint16_t *count);
/**
* @brief Disconnects from the eismultiplexer
*/