(Xposted to c.a.e because we've been talking about these adapters there recently).
I'm trying to use a Cypress-based USB-serial adapter to connect an 8-bit embedded system
I upgraded to 2.6.10-rc3 specifically to get the cypress_m8 driver. It loads OK when I insert the cable, but when I power up the external device and it starts sending bytes, I get a kernel message:
usbhid: probe of 1-2.4:1.0 failed with error -5
(which is -EIO)
When I attempt to send any byte to the external device, I get:
cyphidcom ttyUSB0: cypress_write - usb_submit_urb (write interrupt) failed with status -19
(which is -ENODEV)
Has anyone seen this kind of behavior? Any fixes?