diff options
| author | Aapo Tahkola <aet@rasterburn.org> | 2007-05-08 18:21:47 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@infradead.org> | 2007-07-18 14:23:43 -0300 |
| commit | 3847b22ab59a9110c9e7433ac75751070047280e (patch) | |
| tree | 912b02bdd4dd1b69d6a821c02b6f1b71b497e3d9 /drivers | |
| parent | 55bbe5ea203373c07c10a9d1d5088dd013345027 (diff) | |
| download | blackbird-op-linux-3847b22ab59a9110c9e7433ac75751070047280e.tar.gz blackbird-op-linux-3847b22ab59a9110c9e7433ac75751070047280e.zip | |
V4L/DVB (5694): M920x: fix for Dposh devices
Make sure devices manufactured by Dposh are not affected by previous hw
pid filtering changes
Doing so might crash it.
Signed-off-by: Aapo Tahkola <aet@rasterburn.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/media/dvb/dvb-usb/m920x.c | 38 |
1 files changed, 22 insertions, 16 deletions
diff --git a/drivers/media/dvb/dvb-usb/m920x.c b/drivers/media/dvb/dvb-usb/m920x.c index 350cdc90b9c8..1156b7df7978 100644 --- a/drivers/media/dvb/dvb-usb/m920x.c +++ b/drivers/media/dvb/dvb-usb/m920x.c @@ -59,7 +59,7 @@ static inline int m920x_write(struct usb_device *udev, u8 request, static int m920x_init(struct dvb_usb_device *d, struct m920x_inits *rc_seq) { - int ret = 0, i, epi; + int ret = 0, i, epi, flags = 0; int adap_enabled[M9206_MAX_ADAPTERS] = { 0 }; /* Remote controller init. */ @@ -79,26 +79,32 @@ static int m920x_init(struct dvb_usb_device *d, struct m920x_inits *rc_seq) deb("Initialising remote control success\n"); } - for (i = 0; i < d->props.num_adapters; i++) { - epi = d->adapter[i].props.stream.endpoint - 0x81; + for (i = 0; i < d->props.num_adapters; i++) + flags |= d->adapter[i].props.caps; - if (epi < 0 || epi >= M9206_MAX_ADAPTERS) { - printk(KERN_INFO "m920x: Unexpected adapter endpoint!\n"); - return -EINVAL; - } + /* Some devices(Dposh) might crash if we attempt touch at all. */ + if (flags & DVB_USB_ADAP_HAS_PID_FILTER) { + for (i = 0; i < d->props.num_adapters; i++) { + epi = d->adapter[i].props.stream.endpoint - 0x81; - adap_enabled[epi] = 1; - } + if (epi < 0 || epi >= M9206_MAX_ADAPTERS) { + printk(KERN_INFO "m920x: Unexpected adapter endpoint!\n"); + return -EINVAL; + } - for (i = 0; i < M9206_MAX_ADAPTERS; i++) { - if (adap_enabled[i]) - continue; + adap_enabled[epi] = 1; + } - if ((ret = m920x_set_filter(d, 0x81 + i, 0, 0x0)) != 0) - return ret; + for (i = 0; i < M9206_MAX_ADAPTERS; i++) { + if (adap_enabled[i]) + continue; - if ((ret = m920x_set_filter(d, 0x81 + i, 0, 0x02f5)) != 0) - return ret; + if ((ret = m920x_set_filter(d, 0x81 + i, 0, 0x0)) != 0) + return ret; + + if ((ret = m920x_set_filter(d, 0x81 + i, 0, 0x02f5)) != 0) + return ret; + } } return ret; |
