On Sun, 10 Jan 2010 17:58:58 +0100 Németh Márton <nm127@xxxxxxxxxxx> wrote: > Then I plugged and unplugged the device 16 times. When I last plugged > the device I get the following error in the dmesg: > > [32393.421313] gspca: probing 093a:2626 > [32393.426193] gspca: video0 created > [32393.426958] gspca: probing 093a:2626 > [32393.426968] gspca: Interface class 1 not handled here > [32394.005917] pac7302: reg_w_page(): Failed to write register to > index 0x49, value 0x0, error -71 > [32394.067799] gspca: set alt 8 err -71 > [32394.090792] gspca: set alt 8 err -71 > [32394.118159] gspca: set alt 8 err -71 > > The 17th plug was working correctly again. I executed this test on an > EeePC 901. > > This driver version contains the msleep(4) in the reg_w_buf(). > However, here the reg_w_page() fails, which does not have msleep() > inside. I don't know what is the real problem, but I am afraid that > slowing down reg_w_page() would make the time longer when the device > can be used starting from the event when it is plugged. Hi again, I don't understand what you mean by: > This driver version contains the msleep(4) in the reg_w_buf(). > However, here the reg_w_page() fails, which does not have msleep() > inside. Indeed the delay will slow down the webcam start (256 * 4 ms = 1s). If having a delay fixes the problem, then, as the error always occurs at the same index 0x49 (3 reports), a single delay could be set before writing to this index. Do you want I code this for test? Regards. -- Ken ar c'hentañ | ** Breizh ha Linux atav! ** Jef | http://moinejf.free.fr/ -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
