lv_fs_open() function
Open a file
Arguments
file_p
pointer to a lv_fs_file_t variable
path
path to the file beginning with the driver letter (e.g. S:/folder/file.txt)
mode
read: FS_MODE_RD, write: FS_MODE_WR, both: FS_MODE_RD | FS_MODE_WR
Return value
LV_FS_RES_OK or any error from lv_fs_res_t enum