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| author | Julian Scheel <julian@jusst.de> | 2022-01-21 18:53:03 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-01-26 16:06:08 +0300 |
| commit | a7339e4f5788bd088bb0be1f96a6cce459676ed0 (patch) | |
| tree | 18e6f798108563a7e475508e7bb2ba382f848712 /drivers/usb/gadget/function/u_uac2.h | |
| parent | eb3a1ce6f5ed2c047bcae4aad76b7ee711715c7d (diff) | |
| download | linux-a7339e4f5788bd088bb0be1f96a6cce459676ed0.tar.xz | |
usb: gadget: f_uac2: Support multiple sampling rates
A list of sampling rates can be specified via configfs. All enabled
sampling rates are sent to the USB host on request. When the host
selects a sampling rate, the internal active rate (stored in
struct f_uac2) is updated.
The gadget no longer supports only one frequency. Therefore USB strings
corresponding to the clock sources are renamed from specific Hz value to
general names Input clock/Output clock.
Config strings with single value stay compatible with the previous
version.
Multiple samplerates passed as configuration arrays to g_audio module
when built for f_uac2.
Signed-off-by: Julian Scheel <julian@jusst.de>
Signed-off-by: Pavel Hofman <pavel.hofman@ivitera.com>
Link: https://lore.kernel.org/r/20220121155308.48794-6-pavel.hofman@ivitera.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/gadget/function/u_uac2.h')
| -rw-r--r-- | drivers/usb/gadget/function/u_uac2.h | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/usb/gadget/function/u_uac2.h b/drivers/usb/gadget/function/u_uac2.h index e0c8e3513bfd..6bfcf6d0e863 100644 --- a/drivers/usb/gadget/function/u_uac2.h +++ b/drivers/usb/gadget/function/u_uac2.h @@ -14,6 +14,7 @@ #define U_UAC2_H #include <linux/usb/composite.h> +#include "uac_common.h" #define UAC2_DEF_PCHMASK 0x3 #define UAC2_DEF_PSRATE 48000 @@ -35,10 +36,10 @@ struct f_uac2_opts { struct usb_function_instance func_inst; int p_chmask; - int p_srate; + int p_srates[UAC_MAX_RATES]; int p_ssize; int c_chmask; - int c_srate; + int c_srates[UAC_MAX_RATES]; int c_ssize; int c_sync; |