diff options
Diffstat (limited to 'sound/usb/usx2y/usx2yhwdeppcm.c')
| -rw-r--r-- | sound/usb/usx2y/usx2yhwdeppcm.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/sound/usb/usx2y/usx2yhwdeppcm.c b/sound/usb/usx2y/usx2yhwdeppcm.c index 287ef73b1237..a51340f6f2db 100644 --- a/sound/usb/usx2y/usx2yhwdeppcm.c +++ b/sound/usb/usx2y/usx2yhwdeppcm.c | |||
| @@ -20,7 +20,7 @@ | |||
| 20 | at standard samplerates, | 20 | at standard samplerates, |
| 21 | what led to this part of the usx2y module: | 21 | what led to this part of the usx2y module: |
| 22 | It provides the alsa kernel half of the usx2y-alsa-jack driver pair. | 22 | It provides the alsa kernel half of the usx2y-alsa-jack driver pair. |
| 23 | The pair uses a hardware dependant alsa-device for mmaped pcm transport. | 23 | The pair uses a hardware dependent alsa-device for mmaped pcm transport. |
| 24 | Advantage achieved: | 24 | Advantage achieved: |
| 25 | The usb_hc moves pcm data from/into memory via DMA. | 25 | The usb_hc moves pcm data from/into memory via DMA. |
| 26 | That memory is mmaped by jack's usx2y driver. | 26 | That memory is mmaped by jack's usx2y driver. |
| @@ -38,7 +38,7 @@ | |||
| 38 | 2periods works but is useless cause of crackling). | 38 | 2periods works but is useless cause of crackling). |
| 39 | 39 | ||
| 40 | This is a first "proof of concept" implementation. | 40 | This is a first "proof of concept" implementation. |
| 41 | Later, functionalities should migrate to more apropriate places: | 41 | Later, functionalities should migrate to more appropriate places: |
| 42 | Userland: | 42 | Userland: |
| 43 | - The jackd could mmap its float-pcm buffers directly from alsa-lib. | 43 | - The jackd could mmap its float-pcm buffers directly from alsa-lib. |
| 44 | - alsa-lib could provide power of 2 period sized shaping combined with int/float | 44 | - alsa-lib could provide power of 2 period sized shaping combined with int/float |