From e4fef23874fc84aa1523fb240f68b749e8bbb5ea Mon Sep 17 00:00:00 2001 From: Dimitri Stolnikov Date: Sun, 22 Apr 2012 21:47:00 +0200 Subject: [PATCH] rtlsdr_read_async: buffer length must be multiple of 512 --- include/rtl-sdr.h | 4 ++-- src/rtl-sdr.c | 4 ++-- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/include/rtl-sdr.h b/include/rtl-sdr.h index 04b0fad..14689cc 100644 --- a/include/rtl-sdr.h +++ b/include/rtl-sdr.h @@ -86,8 +86,8 @@ RTLSDR_API int rtlsdr_wait_async(rtlsdr_dev_t *dev, rtlsdr_read_async_cb_t cb, v * \param ctx user specific context to pass via the callback function * \param buf_num optional buffer count, buf_num * buf_len = overall buffer size * set to 0 for default buffer count (32) - * \param buf_len optional buffer length, must be multiple of 2, - * set to 0 for default buffer length (16 * 16384) + * \param buf_len optional buffer length, must be multiple of 512, + * set to 0 for default buffer length (16 * 32 * 512) * \return 0 on success */ RTLSDR_API int rtlsdr_read_async(rtlsdr_dev_t *dev, diff --git a/src/rtl-sdr.c b/src/rtl-sdr.c index 6e40225..761ce49 100644 --- a/src/rtl-sdr.c +++ b/src/rtl-sdr.c @@ -141,7 +141,7 @@ static rtlsdr_device_t devices[] = { }; #define DEFAULT_BUF_NUMBER 32 -#define DEFAULT_BUF_LENGTH (16 * 16384) +#define DEFAULT_BUF_LENGTH (16 * 32 * 512) enum rtlsdr_async_status { RTLSDR_INACTIVE = 0, @@ -891,7 +891,7 @@ int rtlsdr_read_async(rtlsdr_dev_t *dev, rtlsdr_read_async_cb_t cb, void *ctx, else dev->xfer_buf_num = DEFAULT_BUF_NUMBER; - if (buf_len > 0 && buf_len % 2 == 0) /* len must be multiple of 2 */ + if (buf_len > 0 && buf_len % 512 == 0) /* len must be multiple of 512 */ dev->xfer_buf_len = buf_len; else dev->xfer_buf_len = DEFAULT_BUF_LENGTH;